 Massive stalagmites in Big Room of Carlsbad Caverns. New Mexico, December 26, 2007
 Stalactites and massive stalagmites in Big Room of Carlsbad Caverns. New Mexico, December 26, 2007
 Stalactites and stalagmites in a small alcove along the side of Big Room of Carlsbad Caverns. New Mexico, December 26, 2007
 Speleothems (including stalactites, stalagmites, a column, and helictites) in an alcove of the Big Room of Carlsbad Caverns. New Mexico, December 26, 2007
 Passage in Big Room of Carlsbad Caverns. New Mexico, December 26, 2007
 Narrow passage in Big Room of Carlsbad Caverns. New Mexico, December 26, 2007
 Limestone tunnel in Big Room of Carlsbad Caverns. New Mexico, December 26, 2007
 Flowstone feature in Big Room of Carlsbad Caverns. New Mexico, December 26, 2007
 A column and other speleothems in Big Room of Carlsbad Caverns. New Mexico, December 26, 2007
 Limestone formations in Big Room of Carlsbad Caverns. New Mexico, December 26, 2007
 Lions Tails hanging in Big Room of Carlsbad Caverns. New Mexico, December 26, 2007
 Travertine speleothems along a passage in Big Room of Carlsbad Caverns. New Mexico, December 26, 2007
 Columns in a small side alcove in Big Room of Carlsbad Caverns. New Mexico, December 26, 2007
 Irregularly rounded- or scallop-shaped passages in Big Room of Carlsbad Caverns. New Mexico, December 26, 2007
 Irregularly shaped limestone formations along a passage of Big Room of Carlsbad Caverns. New Mexico, December 26, 2007
 Huge stalagmite named "Rock of Ages" in Big Room of Carlsbad Caverns. New Mexico, December 26, 2007
 Bone-shaped limestone formations along a passage of Big Room of Carlsbad Caverns. New Mexico, December 26, 2007
 A narrow stalagmite with a large cluster of stalactites in the Big Room of Carlsbad Caverns. New Mexico, December 26, 2007
 Drapery and ripple-shaped patterns of travertine flowstone speleothems in Big Room of Carlsbad Caverns. New Mexico, December 26, 2007
 "Natural entrance" to Carlsbad Caverns. New Mexico, December 26, 2007
 Pointed formations in caves of Carlsbad Caverns. New Mexico, December 26, 2007
 Serpentine path of "Natural entrance" to Carlsbad Caverns. New Mexico, December 26, 2007
 Ocotillo bush near a road between White s City and Carlsbad Caverns. New Mexico, December 26, 2007
 Fresh snow near a road between White s City and Carlsbad Caverns. New Mexico, December 26, 2007
 Plants in snow near a road between White s City and Carlsbad Caverns. New Mexico, December 26, 2007
 Cholla cactus in snow near a road between White s City and Carlsbad Caverns. New Mexico, December 26, 2007
 Agaves and cacti in snow near a road between White s City and Carlsbad Caverns. New Mexico, December 26, 2007
 Prickly pears cactus in snow near a road between White s City and Carlsbad Caverns. New Mexico, December 26, 2007
 Stalagmites in Natural Bridge Caverns. San Antonio, Texas, October 6, 2007
 Stalagmites in Northern Cavern in Natural Bridge Caverns. San Antonio, Texas, October 6, 2007
 Jackie and Hall Olds (Hal Old) store, grocery and cafe at crossing of Hwy 285 and FM 652. Orla, New Mexico, December 25, 2007
 A hall in Northern Cavern in Natural Bridge Caverns. San Antonio, Texas, October 6, 2007
 Spacious hall in Northern Cavern in Natural Bridge Caverns. San Antonio, Texas, October 6, 2007
 Hall of the Mountain King(?) in Northern Cavern in Natural Bridge Caverns. San Antonio, Texas, October 6, 2007
 Skeletal remains of a pier that used to hold Balinese Room, a nightclub and a former dancing hall and an illegal casino at 2108 Seawall Boulevard that extended 600 feet from Seawall Boulevard at 21st Street into the Gulf of Mexico and that was washed away by hurricane Ike. Galveston, Texas, November 15, 2008
 George Ashby s Phillips 66 gas station at crossing of Hwy 285 and FM 652. Orla, New Mexico, December 25, 2007
 A sign near Orla grocery near historical marker No. 3876 at crossing of Hwy 285 and FM 652. Orla, New Mexico, December 25, 2007
 Orla cafe served to feed workers in oil, gas, and sulphur fields, at crossing of Hwy 285 and FM 652. Orla, New Mexico, December 25, 2007
 A cave in Northern Cavern in Natural Bridge Caverns. San Antonio, Texas, October 6, 2007
 The Watchtower in Northern Cavern in Natural Bridge Caverns. San Antonio, Texas, October 6, 2007
 Stalactites in Northern Cavern in Natural Bridge Caverns. San Antonio, Texas, October 6, 2007
 The King s Throne in Northern Cavern in Natural Bridge Caverns. San Antonio, Texas, October 6, 2007
 Pluto s Anteroom(?) in Northern Cavern in Natural Bridge Caverns. San Antonio, Texas, October 6, 2007
 Devil s Hall in Pine Spring Canyon. Guadalupe Mountains National Park, Texas, December 28, 2007
 Rocks in Devil s Hall in Pine Spring Canyon. Guadalupe Mountains National Park, Texas, December 28, 2007
 Big rocks near Devil s Hall in Pine Spring Canyon. Guadalupe Mountains National Park, Texas, December 28, 2007
 Rocks on Devils Hall Trail in Pine Spring Canyon. Guadalupe Mountains National Park, Texas, December 28, 2007
 Hiker s staircase in Pine Spring Canyon, on Devils Hall Trail. Guadalupe Mountains National Park, Texas, December 28, 2007
 Dead juniper on Devils Hall Trail in Pine Spring Canyon. Guadalupe Mountains National Park, Texas, December 28, 2007
 View of Lockhart Hall from arched gate of Blair Hall of Princeton University. Princeton, New Jersey, March 7, 2007
 A tiger behind Whig Hall, with Nassau Hall in background, in Princeton University. Princeton, New Jersey, March 7, 2007
 Upper section of Hiker s Staircase near Devil s Hall in Pine Spring Canyon. Guadalupe Mountains National Park, Texas, December 28, 2007
 Sickle and rye emblem over the entrance of Scoates Hall (Agricultural education) on campus of Texas A and M University. College Station, Texas, December 19, 2007
 Texas madrone (Arbutus xalapensis) on Devils Hall Trail in Pine Spring Canyon. Guadalupe Mountains National Park, Texas, December 28, 2007
 Peeling bark of Texas madrone on Devils Hall Trail in Pine Spring Canyon. Guadalupe Mountains National Park, Texas, December 28, 2007
 Massive door of the Church of Holy Sepulchre. Jerusalem, the Middle East, December 13, 2002.
 Smooth white bark of Texas madrone on Devils Hall Trail in Pine Spring Canyon. Guadalupe Mountains National Park, Texas, December 28, 2007
 Various green and grey lichens on a massive cast iron fence in Odd Fellow Cemetery. Anderson, Texas, December 31, 2018
 - Pecos Wilderness in New Mexico 8/30/97 (Dallas - a trip to New Mexico mountains, July 11 - August 30, 1997)
 - Pecos Wilderness in New Mexico 8/30/97 (Dallas - a trip to New Mexico mountains, July 11 - August 30, 1997)
 - Pecos Wilderness in New Mexico 8/30/97 (Dallas - a trip to New Mexico mountains, July 11 - August 30, 1997)
 - Pecos Wilderness in New Mexico 8/30/97 (Dallas - a trip to New Mexico mountains, July 11 - August 30, 1997)
 - Pecos Wilderness in New Mexico 8/30/97 (Dallas - a trip to New Mexico mountains, July 11 - August 30, 1997)
 - Pecos Wilderness in New Mexico 8/30/97 (Dallas - a trip to New Mexico mountains, July 11 - August 30, 1997)
 - Pecos Wilderness in New Mexico 8/30/97 (Dallas - a trip to New Mexico mountains, July 11 - August 30, 1997)
 - Pecos Wilderness in New Mexico 8/30/97 (Dallas - a trip to New Mexico mountains, July 11 - August 30, 1997)
 - Pecos Wilderness in New Mexico 8/30/97 (Dallas - a trip to New Mexico mountains, July 11 - August 30, 1997)
 A room in Museum of Fine Arts. Houston, Texas, June 17, 2007
 Precious Room of Yusupov Palace. Saint Petersburg, Russia, September 6, 2007
 Billiards room in Yusupov Palace. Saint Petersburg, Russia, September 6, 2007
 Statue in Precious Room of Yusupov Palace. Saint Petersburg, Russia, September 6, 2007
 Entrance of Majolica Room in Hermitage museum. Saint Petersburg, Russia, August 14, 2007
 Gold Drawing-room in Hermitage museum. Saint Petersburg, Russia, August 14, 2007
 A room in Grand Palace. Peterhof, a suburb of Saint Petersburg, Russia, August 31, 2007
 Mirror in Precious Room of Yusupov Palace. Saint Petersburg, Russia, September 6, 2007
 Red room in Grand Palace. Peterhof, a suburb of Saint Petersburg, Russia, August 31, 2007
 Room in Pavlovsky Palace. Pavlovsk, a suburb of Saint Petersburg, Russia, August 29, 2007
 Red living room in Pavlovsky Palace. Pavlovsk, a suburb of Saint Petersburg, Russia, August 29, 2007
 Living room in Pavlovsky Palace. Pavlovsk, a suburb of Saint Petersburg, Russia, August 29, 2007
 Decorated room in Grand Palace. Peterhof, a suburb of Saint Petersburg, Russia, August 31, 2007
 Room with portraits in Grand Palace. Peterhof, a suburb of Saint Petersburg, Russia, August 31, 2007
 Green room in Grand Palace. Peterhof, a suburb of Saint Petersburg, Russia, August 31, 2007
 Dining room in Grand Palace. Peterhof, a suburb of Saint Petersburg, Russia, August 31, 2007
 Room corner in Grand Palace. Peterhof, a suburb of Saint Petersburg, Russia, August 31, 2007
 A hall in Museum of Fine Arts. Houston, Texas, June 17, 2007
 Stuart Hall of Theological Seminary. Princeton, New Jersey, March 2, 2007
 A statue of A. Einstein outside Borough Hall. Princeton, New Jersey, March 7, 2007
 Room in Alexander Palace. Tsarskoe Selo (Pushkin), suburb of Saint Petersburg, Russia, September 2, 2007
 Entrance of Tukish Room from Mauritanian Parlor in Yusupov Palace. Saint Petersburg, Russia, September 6, 2007
 Hall of Vitebsky Train Station. Saint Petersburg, Russia, August 29, 2007
 White Hall in Russian Museum. Saint Petersburg, Russia, August 13, 2007
 Banquet Hall of Yusupov Palace. Saint Petersburg, Russia, September 6, 2007
 Reading room in Alexander Palace. Tsarskoe Selo (Pushkin), suburb of Saint Petersburg, Russia, September 2, 2007
 Horse in Knight Hall in Hermitage museum. Saint Petersburg, Russia, August 14, 2007
 A hall in Grand Palace. Peterhof, a suburb of Saint Petersburg, Russia, August 31, 2007
 Ball(?) hall in Grand Palace. Peterhof, a suburb of Saint Petersburg, Russia, August 31, 2007
 Portrait hall in Grand Palace. Peterhof, a suburb of Saint Petersburg, Russia, August 31, 2007
 Side decorations of a hall of Vitebsky Train Station. Saint Petersburg, Russia, August 29, 2007
 Granite columns in the hall of ancient art in Hermitage museum. Saint Petersburg, Russia, August 14, 2007
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