Delicate formations reflected in a pool, Lehman Caves. Great Basin National Park, Nevada, USA. http://www.terragalleria.com/parks/np-image.grba0643.html Illuminated cave formations, upper cave, Phong Nha Cave. Vietnam http://www.terragalleria.com/vietnam/picture.viet7657.html Hall of Giants with six stories tall formations. Carlsbad Caverns National Park, New Mexico, USA. http://www.terragalleria.com/parks/np-image.caca1214.html Stalactites in the Frozen Niagara section. Mammoth Cave National Park, Kentucky, USA. http://www.terragalleria.com/parks/np-image.maca0479.html Icicles in Mossy Cave. Bryce Canyon National Park, Utah, USA. http://www.terragalleria.com/parks/np-image.usut9011.html Triple-headed Shiva sculpture, Elephanta caves. Mumbai, Maharashtra, India http://www.terragalleria.com/asia/india/mumbai/picture.indi39171.html Cave mouth, where strong winds equalize pressure between inside outside. Wind Cave National Park, South Dakota, USA. http://www.terragalleria.com/parks/np-image.wica0579.html Troglodyte sanctuary in the Marble Mountains. Da Nang, Vietnam http://www.terragalleria.com/vietnam/picture.viet7975.html Buddha statues left by pilgrims in Pak Ou caves. Laos http://www.terragalleria.com/asia/laos/pak-ou/picture.laos4650.html Cave entrance, Oregon Caves National Monument. Oregon, USA http://www.terragalleria.com/america/oregon/oregon-caves/picture.usor50852.html Tham Phra Nang cave sanctuary, Rai Leh. Krabi Province, Thailand http://www.terragalleria.com/asia/thailand/railay/picture.thai48227.html Boardwalk and entrance of Thurston lava tube. Hawaii Volcanoes National Park, Hawaii, USA. http://www.terragalleria.com/parks/np-image.havo49454.html Cave sanctuary near Tam Coc. Ninh Binh, Vietnam http://www.terragalleria.com/vietnam/picture.viet8254.html Rare parachute cave formations, Mitchell caverns. Mojave National Preserve, California, USA http://www.terragalleria.com/california/picture.usca10102.html Women praying at the altar at the entrance of Tan Thanh Cave. Lang Son, Northest Vietnam http://www.terragalleria.com/vietnam/picture.viet7685.html Tourists in illuminated cave. Halong Bay, Vietnam http://www.terragalleria.com/vietnam/picture.viet7909.html Rocks and trail in Bear Gulch Caves. Pinnacles National Park, California, USA. http://www.terragalleria.com/parks/np-image.usca9442.html Waikanaloa wet cave. North shore, Kauai island, Hawaii, USA http://www.terragalleria.com/pacific/kauai/kauai-north-shore/picture.hawa33359.html Looking out from a cave. Zion National Park, Utah, USA. http://www.terragalleria.com/parks/np-image.zion8624.html Spiderweb-like gate closing Crystal Cave. Sequoia National Park, California, USA. http://www.terragalleria.com/parks/np-image.sequ45289.html Caver inside a lava tube, Lava Beds National Monument. Lava Beds National Monument, California, USA http://www.terragalleria.com/california/picture.usca10005.html The Nang River passes through a cave. Northeast Vietnam http://www.terragalleria.com/vietnam/picture.viet7730.html Fern grotto, Wilder Ranch State Park. California, USA http://www.terragalleria.com/california/picture.usca9524.html Entrance shaft and rain-fed water drip. Mammoth Cave National Park, Kentucky, USA. http://www.terragalleria.com/parks/np-image.maca39884.html Boat inside the lower cave, Phong Nha Cave. Vietnam http://www.terragalleria.com/vietnam/picture.viet7663.html Stalactites and Stalacmites, Lehman Caves. Great Basin National Park, Nevada, USA. http://www.terragalleria.com/parks/np-image.grba0677.html Figures of Dwarpala on Shiva shrine, Elephanta caves. Mumbai, Maharashtra, India http://www.terragalleria.com/asia/india/mumbai/picture.indi39167.html Marble Cave, Oregon Caves National Monument. Oregon, USA http://www.terragalleria.com/america/oregon/oregon-caves/picture.usor50850.html Tham Phra Nang (princess cave) shrine, Railay. Krabi Province, Thailand http://www.terragalleria.com/asia/thailand/railay/picture.thai48229.html Tall columns in Hall of Giants. Carlsbad Caverns National Park, New Mexico, USA. http://www.terragalleria.com/parks/np-image.caca5923.html The cave unique boxwork, a calcite formation. Wind Cave National Park, South Dakota, USA. http://www.terragalleria.com/parks/np-image.wica0581.html Thurston lava tube (Nahuku). Hawaii Volcanoes National Park, Hawaii, USA. http://www.terragalleria.com/parks/np-image.havo49441.html Novice Buddhist monk at entrance of lower Pak Ou cave. Laos http://www.terragalleria.com/asia/laos/pak-ou/picture.laos4657.html Rare cave formations, Mitchell caverns. Mojave National Preserve, California, USA http://www.terragalleria.com/california/picture.usca10101.html Group praying at the altar at the entrance of Tan Thanh Cave. Lang Son, Northest Vietnam http://www.terragalleria.com/vietnam/picture.viet7686.html Thick ice stalictites in Mossy Cave. Bryce Canyon National Park, Utah, USA. http://www.terragalleria.com/parks/np-image.brca45160.html Boulders in Bear Gulch Caves. Pinnacles National Park, California, USA. http://www.terragalleria.com/parks/np-image.usca9439.html Subterranean passage with ornate cave formations, Crystal Cave. Sequoia National Park, California, USA. http://www.terragalleria.com/parks/np-image.sequ45293.html Troglodyte temple, Marble Mountains. Da Nang, Vietnam http://www.terragalleria.com/vietnam/picture.viet7992.html Underground sanctuary near Tam Coc. Ninh Binh, Vietnam http://www.terragalleria.com/vietnam/picture.viet8255.html Waikanaloa wet cave. North shore, Kauai island, Hawaii, USA http://www.terragalleria.com/pacific/kauai/kauai-north-shore/picture.hawa33360.html Entrance shaft. Mammoth Cave National Park, Kentucky, USA. http://www.terragalleria.com/parks/np-image.maca39883.html Concretions in Lehman Cave. Great Basin National Park, Nevada, USA. http://www.terragalleria.com/parks/np-image.grba8599.html Women sitting at entrance of cave, Elephanta Island. Mumbai, Maharashtra, India http://www.terragalleria.com/asia/india/mumbai/picture.indi39177.html Dissolution room, Oregon Caves. Oregon, USA http://www.terragalleria.com/america/oregon/oregon-caves/picture.usor50846.html Cave formations reflected in a pond, lower cave, Phong Nha Cave. Vietnam http://www.terragalleria.com/vietnam/picture.viet7658.html Carved wooden phalluses, Phranang cave, Rai Leh. Krabi Province, Thailand http://www.terragalleria.com/asia/thailand/railay/picture.thai48230.html Large stalagmite column and thin stalagtites. Carlsbad Caverns National Park, New Mexico, USA. http://www.terragalleria.com/parks/np-image.caca20908.html Thurston lava tube seen from inside. Hawaii Volcanoes National Park, Hawaii, USA. http://www.terragalleria.com/parks/np-image.havo1608.html Cave formations, Mitchell caverns. Mojave National Preserve, California, USA http://www.terragalleria.com/california/picture.usca9744.html Elderly women praying in Nhi Thanh Cave. Lang Son, Northest Vietnam http://www.terragalleria.com/vietnam/picture.viet7679.html Buddha statues, Tham Ting cave, Pak Ou. Laos http://www.terragalleria.com/asia/laos/pak-ou/picture.laos4653.html Cave concretions. Wind Cave National Park, South Dakota, USA. http://www.terragalleria.com/parks/np-image.wica20731.html Polished marble and calcite stalactites, Crystal Cave. Sequoia National Park, California, USA. http://www.terragalleria.com/parks/np-image.sequ45297.html Thick ice columns in Mossy Cave. Bryce Canyon National Park, Utah, USA. http://www.terragalleria.com/parks/np-image.brca45159.html Troglodyte temple, Marble Mountains. Da Nang, Vietnam http://www.terragalleria.com/vietnam/picture.viet8298.html Bear Gulch talus caves. Pinnacles National Park, California, USA. http://www.terragalleria.com/parks/np-image.usca9440.html Steps and handrails leading down to cave. Mammoth Cave National Park, Kentucky, USA. http://www.terragalleria.com/parks/np-image.maca39886.html Stalactites, Oregon Caves National Monument. Oregon, USA http://www.terragalleria.com/america/oregon/oregon-caves/picture.usor50845.html Woman and children standing in front of Mahesh Murti, main Elephanta cave. Mumbai, Maharashtra, India http://www.terragalleria.com/asia/india/mumbai/picture.indi39169.html Interior and entrance of Phong Nha Cave with Rocks and boats. Vietnam http://www.terragalleria.com/vietnam/picture.viet7659.html Locals worship at Pranang Cave, Railay. Krabi Province, Thailand http://www.terragalleria.com/asia/thailand/railay/picture.thai48233.html Stalactites and columns in big room. Carlsbad Caverns National Park, New Mexico, USA. http://www.terragalleria.com/parks/np-image.caca1213.html Corn formations, Lehman Cave. Great Basin National Park, Nevada, USA. http://www.terragalleria.com/parks/np-image.grba6084.html Women catch the water seeping from Tan Thanh Cave, said to have mirculous properties. Lang Son, Northest Vietnam http://www.terragalleria.com/vietnam/picture.viet7684.html Delicate cave formations, Mitchell caverns. Mojave National Preserve, California, USA http://www.terragalleria.com/california/picture.usca9747.html Tourists in huge Subterranean room, Crystal Cave. Sequoia National Park, California, USA. http://www.terragalleria.com/parks/np-image.sequ45295.html The cave unique boxwork, a calcite formation. Wind Cave National Park, South Dakota, USA. http://www.terragalleria.com/parks/np-image.wica0580.html Novice Buddhist monk at entrance of cave, Pak Ou. Laos http://www.terragalleria.com/asia/laos/pak-ou/picture.laos4658.html Rocks and path in Bear Gulch Caves. Pinnacles National Park, California, USA. http://www.terragalleria.com/parks/np-image.usca9441.html Troglodyte sanctuary in the Marble mountains. Da Nang, Vietnam http://www.terragalleria.com/vietnam/picture.viet8185.html Close-up of flowstone, Oregon Caves. Oregon, USA http://www.terragalleria.com/america/oregon/oregon-caves/picture.usor50851.html Vistors in main cave, Elephanta Island. Mumbai, Maharashtra, India http://www.terragalleria.com/asia/india/mumbai/picture.indi39188.html Pranang Cave shrine, Rai Leh. Krabi Province, Thailand http://www.terragalleria.com/asia/thailand/railay/picture.thai48228.html Crystal Lake seen from shaft above. Mammoth Cave National Park, Kentucky, USA. http://www.terragalleria.com/parks/np-image.maca0477.html Six-story tall colum and stalagmites in Hall of Giants. Carlsbad Caverns National Park, New Mexico, USA. http://www.terragalleria.com/parks/np-image.caca20910.html Tall columns in Lehman Cave. Great Basin National Park, Nevada, USA. http://www.terragalleria.com/parks/np-image.grba6075.html Urn and lianas near the entrance of upper cave, Phong Nha Cave. Vietnam http://www.terragalleria.com/vietnam/picture.viet7654.html Cave formations, Tam Thanh Cave. Lang Son, Northest Vietnam http://www.terragalleria.com/vietnam/picture.viet7683.html Ornate calcite stalactites, Crystal Cave. Sequoia National Park, California, USA. http://www.terragalleria.com/parks/np-image.sequ45291.html Hundreds of wooden Buddhist figures on wall shelves, Pak Ou caves. Laos http://www.terragalleria.com/asia/laos/pak-ou/picture.laos4652.html Honeycombed cave formation. Wind Cave National Park, South Dakota, USA. http://www.terragalleria.com/parks/np-image.wica5895.html Delicate cave formations, Mitchell caverns. Mojave National Preserve, California, USA http://www.terragalleria.com/california/picture.usca9745.html Altar and Buddha statue in a troglodyte sanctuary of the Marble Mountains. Da Nang, Vietnam http://www.terragalleria.com/vietnam/picture.viet8317.html Flowstone, Oregon Caves National Monument. Oregon, USA http://www.terragalleria.com/america/oregon/oregon-caves/picture.usor50849.html Ribons, Pranang cave shrine, Railay. Krabi Province, Thailand http://www.terragalleria.com/asia/thailand/railay/picture.thai48231.html Stalagmite and stalagtites draperies. Carlsbad Caverns National Park, New Mexico, USA. http://www.terragalleria.com/parks/np-image.caca20909.html Rain-fed waterfall seen from inside cave. Mammoth Cave National Park, Kentucky, USA. http://www.terragalleria.com/parks/np-image.maca39890.html Mandapae, Elephanta caves. Mumbai, Maharashtra, India http://www.terragalleria.com/asia/india/mumbai/picture.indi39173.html Stalactites and curtains, Crystal Cave. Sequoia National Park, California, USA. http://www.terragalleria.com/parks/np-image.sequ45292.html Ngoc Tuyen River flowing through Nhi Thanh Cave. Lang Son, Northest Vietnam http://www.terragalleria.com/vietnam/picture.viet7680.html Stalactite in upper Phong Nha Cave. Vietnam http://www.terragalleria.com/vietnam/picture.viet7655.html Soda Straws formations in Lehman Cave. Great Basin National Park, Nevada, USA. http://www.terragalleria.com/parks/np-image.grba9217.html Boxwork ceilling cave formation. Wind Cave National Park, South Dakota, USA. http://www.terragalleria.com/parks/np-image.wica20730.html Lao style Buddha sculptures assembled over the centuries by local people, Pak Ou. Laos http://www.terragalleria.com/asia/laos/pak-ou/picture.laos4651.html Cave formations, Mitchell caverns. Mojave National Preserve, California, USA http://www.terragalleria.com/california/picture.usca9746.html Pranang Cave, Railay. Krabi Province, Thailand http://www.terragalleria.com/asia/thailand/railay/picture.thai48226.html Linga in Sanctorum of Siva shrine, Elephanta caves. Mumbai, Maharashtra, India http://www.terragalleria.com/asia/india/mumbai/picture.indi39187.html Steps and railing leading down to historical cave entrance. Mammoth Cave National Park, Kentucky, USA. http://www.terragalleria.com/parks/np-image.maca39885.html Stalagtite chandelier and stubby stalagmites. Carlsbad Caverns National Park, New Mexico, USA. http://www.terragalleria.com/parks/np-image.caca20911.html Curtain of icicle-like stalactites, Crystal Cave. Sequoia National Park, California, USA. http://www.terragalleria.com/parks/np-image.sequ45290.html Tour boat getting out of a tunnel, Phong Nha Cave. Vietnam http://www.terragalleria.com/vietnam/picture.viet7660.html Rare parachute underground formations, Lehman Caves. Great Basin National Park, Nevada, USA. http://www.terragalleria.com/parks/np-image.grba0678.html Cave ceilling with rare boxwork concretions. Wind Cave National Park, South Dakota, USA. http://www.terragalleria.com/parks/np-image.wica20732.html Tourist in Nhi Thanh Cave. Lang Son, Northest Vietnam http://www.terragalleria.com/vietnam/picture.viet7681.html Novice Buddhist monk in Tham Ting cave, Pak Ou. Laos http://www.terragalleria.com/asia/laos/pak-ou/picture.laos4655.html Spirit House, Tham Phra Nang, Rai Leh. Krabi Province, Thailand http://www.terragalleria.com/asia/thailand/railay/picture.thai48232.html Marriage of Shiva and Parvati. Mumbai, Maharashtra, India http://www.terragalleria.com/asia/india/mumbai/picture.indi39185.html Mahesh Murti and Gangadhara Siva carved in rock, main Elephanta cave. Mumbai, Maharashtra, India http://www.terragalleria.com/asia/india/mumbai/picture.indi39168.html Lingam, Elephanta caves. Mumbai, Maharashtra, India http://www.terragalleria.com/asia/india/mumbai/picture.indi39181.html Ephemeral waterfall seen from inside cave. Mammoth Cave National Park, Kentucky, USA. http://www.terragalleria.com/parks/np-image.maca39887.html Stalactites in Big Room. Carlsbad Caverns National Park, New Mexico, USA. http://www.terragalleria.com/parks/np-image.caca20912.html Papoose Room. Carlsbad Caverns National Park, New Mexico, USA. http://www.terragalleria.com/parks/np-image.caca20914.html Natraj Shiva. Mumbai, Maharashtra, India http://www.terragalleria.com/asia/india/mumbai/picture.indi39186.html Historic entrance of the cave. Mammoth Cave National Park, Kentucky, USA. http://www.terragalleria.com/parks/np-image.maca5401.html Pilars in main cave, Elephanta Island. Mumbai, Maharashtra, India http://www.terragalleria.com/asia/india/mumbai/picture.indi39165.html Cave with sculptures and entrances, Elephanta Island. Mumbai, Maharashtra, India http://www.terragalleria.com/asia/india/mumbai/picture.indi39182.html Calcite flowstone and cave curtains, Dome Room, Crystal Cave. Sequoia National Park, California, USA. http://www.terragalleria.com/parks/np-image.sequ45294.html Fine Stalactites growing from ceiling of Papoose Room. Carlsbad Caverns National Park, New Mexico, USA. http://www.terragalleria.com/parks/np-image.caca6007.html Entrance to Crystal Cave. Sequoia National Park, California, USA. http://www.terragalleria.com/parks/np-image.sequ45288.html Underground pond called Crystal Lake. Mammoth Cave National Park, Kentucky, USA. http://www.terragalleria.com/parks/np-image.maca0478.html Man venerating a Linga in Shiva shrine, Elephanta Island. Mumbai, Maharashtra, India http://www.terragalleria.com/asia/india/mumbai/picture.indi39180.html Trimurti flanked by pilasters with figures of dwarplalas, Elephanta caves. Mumbai, Maharashtra, India http://www.terragalleria.com/asia/india/mumbai/picture.indi39183.html Cave hewn from solid rock, Elephanta Island. Mumbai, Maharashtra, India http://www.terragalleria.com/asia/india/mumbai/picture.indi39174.html Delicate stalactites in Papoose Room. Carlsbad Caverns National Park, New Mexico, USA. http://www.terragalleria.com/parks/np-image.caca6006.html Shiva Shakti rock-carved sculpture, main Elephanta cave. Mumbai, Maharashtra, India http://www.terragalleria.com/asia/india/mumbai/picture.indi39176.html Boat inside the cave, Phong Nha Cave. Vietnam http://www.terragalleria.com/vietnam/picture.viet7662.html Forest with autumn color seen from inside cave. Mammoth Cave National Park, Kentucky, USA. http://www.terragalleria.com/parks/np-image.maca39874.html Stalagtites and stalagmites in the Frozen Niagara section. Mammoth Cave National Park, Kentucky, USA. http://www.terragalleria.com/parks/np-image.maca5400.html Visitor in large room. Carlsbad Caverns National Park, New Mexico, USA. http://www.terragalleria.com/parks/np-image.caca1216.html Altar in Tam Thanh Cave. Lang Son, Northest Vietnam http://www.terragalleria.com/vietnam/picture.viet7682.html Gangadhara (descent of the Ganges) sculpture, main Elephanta cave. Mumbai, Maharashtra, India http://www.terragalleria.com/asia/india/mumbai/picture.indi39184.html Ardhanarishwar rock-carved sculpture, main Elephanta cave. Mumbai, Maharashtra, India http://www.terragalleria.com/asia/india/mumbai/picture.indi39172.html Main Elephanta cave, Elephanta Island. Mumbai, Maharashtra, India http://www.terragalleria.com/asia/india/mumbai/picture.indi39170.html Tourist framed by cave formations, upper cave, Phong Nha Cave. Vietnam http://www.terragalleria.com/vietnam/picture.viet7656.html Siva shrine, main Elephanta cave. Mumbai, Maharashtra, India http://www.terragalleria.com/asia/india/mumbai/picture.indi39166.html Stalacmites in Big Room. Carlsbad Caverns National Park, New Mexico, USA. http://www.terragalleria.com/parks/np-image.caca1215.html Boat and tunnel, Phong Nha Cave. Vietnam http://www.terragalleria.com/vietnam/picture.viet7661.html Water drops dripping of stalactites, Lehman Cave. Great Basin National Park, Nevada, USA. http://www.terragalleria.com/parks/np-image.grba6083.html Novice Buddhist monk and vistor in Pak Ou cave. Laos http://www.terragalleria.com/asia/laos/pak-ou/picture.laos4656.html Family looking at Ardhanarishwar Siva sculpture, main Elephanta cave. Mumbai, Maharashtra, India http://www.terragalleria.com/asia/india/mumbai/picture.indi39175.html Buddhist statues left by pilgrims, lower Pak Ou cave. Laos http://www.terragalleria.com/asia/laos/pak-ou/picture.laos4654.html Styx resurgence in winter. Mammoth Cave National Park, Kentucky, USA. http://www.terragalleria.com/parks/np-image.maca0481.html