 Cave deposits in Cathedral Cave in Onondaga Cave State Park. Leasburg, Missouri, September 24, 2005
 In Cathedral Cave in Onondaga Cave State Park. Leasburg, Missouri, September 24, 2005
 Cathedral Cave in Onondaga Cave State Park. Leasburg, Missouri, September 24, 2005
 In Onondaga Cave. Leasburg, Missouri, September 24, 2005
 A wall in Onondaga Cave. Leasburg, Missouri, September 24, 2005
 "Lily Pad" in Onondaga Cave. Leasburg, Missouri, September 24, 2005
 "The Twins" in Onondaga Cave. Leasburg, Missouri, September 24, 2005
 Deposits in Onondaga Cave. Leasburg, Missouri, September 24, 2005
 "Lily Pad Room" in Onondaga Cave. Leasburg, Missouri, September 24, 2005
 Detail of "Queen s Canopy" in Onondaga Cave. Leasburg, Missouri, September 24, 2005
 A cave of Ozark Caverns in Lake of the Ozarks State Park. Missouri, September 10, 2005
 Angels Showers waterfall in a cave of Ozark Caverns in Lake of the Ozarks State Park. Missouri, September 10, 2005
 A mushroom with brown spores near Coakley Hollow Trail in Lake of the Ozarks State Park. Missouri, September 10, 2005
 A small lake near High Ridge trail in Rock Bridge State Park. Columbia, Missouri, September 24, 2005
 View from the second floor of Missouri State Capitol, with exhibits of the State Museum in background. Jefferson City, Missouri, September 17, 2005
 Interior of Missouri State Capitol, view from the second floor, with the State Museum in background. Jefferson City, Missouri, September 17, 2005
 The second floor of Missouri State Capitol. Jefferson City, Missouri, September 17, 2005
 Entrance of Missouri State Capitol. Jefferson City, Missouri, September 17, 2005
 A dome of Missouri State Capitol, from the second(?) floor. Jefferson City, Missouri, September 17, 2005
 The second floor and the rotunda of Missouri State Capitol. Jefferson City, Missouri, September 17, 2005
 Rotunda of the second floor of Missouri State Capitol. Jefferson City, Missouri, September 17, 2005
 A domed structure in the second floor of Missouri State Capitol. Jefferson City, Missouri, September 17, 2005
 Upper Senate(?) Chamber in Missouri State Capitol. Jefferson City, Missouri, September 17, 2005
 Upper House(?) Chamber in Missouri State Capitol. Jefferson City, Missouri, September 17, 2005
 Interior of the dome of Missouri State Capitol, view from the first floor. Jefferson City, Missouri, September 17, 2005
 Castle on the Lake of the Ozarks in Ha Ha Tonka State Park. Missouri, September 10, 2005
 Ruins of a castle on the Lake of the Ozarks in Ha Ha Tonka State Park. Missouri, September 10, 2005
 The House Lounge with Thomas Hart Benton murals in Missouri State Capitol. Jefferson City, Missouri, September 17, 2005
 Rotunda of Missouri State Capitol, with History Hall in background, view from the second floor. Jefferson City, Missouri, September 17, 2005
 A tour of Thomas Hart Benton murals in the House Lounge in Missouri State Capitol. Jefferson City, Missouri, September 17, 2005
 A domed structure in the second floor and an opening to the third floor of Missouri State Capitol. Jefferson City, Missouri, September 17, 2005
 Katy Trail west from Rocheport. Missouri, September 5, 2005
 A mushroom in Rock Bridge State Park, on High Ridge trail. Columbia, Missouri, September 22, 2005
 High Ridge trail in Rock Bridge State Park, at morning. Columbia, Missouri, September 24, 2005
 Sunflowers near High Ridge Trail in Rock Bridge State Park. Columbia, Missouri, September 17, 2005
 Persimmons fallen on Grassland Trail in Rock Bridge State Park. Columbia, Missouri, September 25, 2005
 High Ridge Trail at morning in Rock Bridge State Park. Columbia, Missouri, September 17, 2005
 Armillaria mushrooms near Deer Run Trail in Rock Bridge State Park. Columbia, Missouri, September 12, 2005
 High Ridge Trail in morning fog in Rock Bridge State Park. Columbia, Missouri, September 17, 2005
 High Ridge trail in Rock Bridge State Park, at misty morning. Columbia, Missouri, September 24, 2005
 Wild persimmons fallen on Grassland Trail in Rock Bridge State Park. Columbia, Missouri, September 28, 2005
 Dew on spider web at morning near High Ridge Trail in Rock Bridge State Park. Columbia, Missouri, September 17, 2005
 Chanterelle mushrooms near Devil s Icebox Trail in Rock Bridge State Park. Columbia, Missouri, September 27, 2005
 Cliffs near Katy Trail west from Rocheport. Missouri, September 5, 2005
 A barn near Katy Trail west from Rocheport, at mile 180. Missouri, September 7, 2005
 Wild persimmon (Diospyros virginiana) near Gan s Creek trail head (blue trail) in Rock Bridge State Park. Columbia, Missouri, September 16, 2005
 Staghorn sumac (Rhus typhina) near High Ridge Trail in Rock Bridge State Park. Columbia, Missouri, September 29, 2005
 Fruits of Jack-in-the-Pulpit near Katy Trail west from Rocheport. Missouri, September 7, 2005
 Leccinum mushrooms with yellow pores under pine trees near Red Connection of Spring Brook Trail in Rock Bridge State Park. Columbia, Missouri, September 11, 2005
 Branched thorns growing from a trunk of honey locust (Gleditsia triacanthos) near Deer Run Trail in Rock Bridge State Park. Columbia, Missouri, September 12, 2005
 View of Ramon Crater to south-west from a lookout near Visitor Center. Mitzpe Ramon, the Middle East, February 1, 2001
 Water tupelo trees near Visitor Center Trail in Barataria Preserve. South from New Orleans, Louisiana, December 22, 2006
 Cypress needles on a boardwalk of Visitor Center Trail in Barataria Preserve. South from New Orleans, Louisiana, December 22, 2006
 Fibrous bark of a cypress near Visitor Center Trail in Barataria Preserve. South from New Orleans, Louisiana, December 22, 2006
 Brushwood Lake near MKT Parkway. Columbia, Missouri, September 8, 2005
 Giant puffball mushroom between Devil s Icebox and Sinkhole trails in Rock Bridge State Park. Columbia, Missouri, September 27, 2005
 A giant puffball mushroom between Devil s Icebox and Sinkhole trails in Rock Bridge State Park. Columbia, Missouri, September 27, 2005
 Water tupelo trees in a swamp near Visitor Center Trail in Barataria Preserve. South from New Orleans, Louisiana, December 22, 2006
 Railroad tunnel of Katy Trail in Rocheport. Missouri, September 7, 2005
 A plant on a roadside of Katy Trail between New Franklin and Rocheport, near marker 180. Missouri, September 18, 2005
 Railroad s explosives bunker near Katy Trail east from Rocheport, mile 177.5. Missouri, September 13, 2005
 A stone Lodge near Leach Pond and Visitor Center in Borderland State Park. North Easton, Massachusetts, October 16, 2004
 Bolete mushrooms Boletus luridellus on a grassy lawn under live oaks near Visitor Center in Washington-on-the-Brazos State Historic Site. Washington, Texas, September 5, 2020
 A farm, view from road K, near Rock Bridge Park. Columbia, Missouri, September 24, 2005
 Pearsons old clay tiled elevator near Katy Trail east from New Franklin, at marker 184.5, at intersection with CR 467, view from a corn field. Missouri, September 18, 2005
 Burr Oak Road, at morning. Columbia, Missouri, September 24, 2005
 Twin Lakes at sunset. Columbia, Missouri, September 6, 2005
 Twin Lakes at evening. Columbia, Missouri, September 2, 2005
 Old railroad bridge of MKT Parkway. Columbia, Missouri, September 8, 2005
 Visitor s walk in current Mission Control Center in NASA Space Center Museum. Houston, Texas, February 16, 2008
 Twin Lakes at evening, after rain. Columbia, Missouri, September 19, 2005
 Waterfall in Shelter Insurance Gardens. Columbia, Missouri, September 1, 2005
 View from a trail behind Visitor Center in Bandelier National Monument. New Mexico, near Los Alamos, May 26, 2008
 A jeep road at the bottom of Ramon Crater approaching Nahal Ramon River, view to the north, with Mitzpe Ramon Visitor s Center on horizon in the center (there is only one acacia tree in Ramon Crater in this area), 3 miles south-east from Mitzpe Ramon. The Middle East, May 3, 2001
 Blue water lily in front of Visitor Center in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, September 5, 2009
 View of hills at the bottom of Ramon Crater from distance of 1 mile to the south-east from Mitzpe Ramon Visitor s Center. The Middle East, May 3, 2001
 A.S. reading a book titled "Why the United States will cease to exist", in Russian. Columbia, Missouri, September 9, 2005
 Various spring wildflowers behind Visitor Center in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 4, 2022
 Mushrooms Boletus luridellus on a lawn under live oaks near Visitor Center in Washington-on-the-Brazos State Historic Site. Washington, Texas, October 4, 2021
 Small cave ib clay soil on the lake shore near Birch Creek Unit of Somerville Lake State Park. Texas, January 16, 2023
 Kathy Trail along Missouri River near Columbia, Missouri. October 23, 1999.
 Kathy Trail along Missouri River near Columbia, Missouri. October 23, 1999.
 Rocks along Missouri River, view from Kathy Trail near Columbia, Missouri. October 23, 1999.
 Rocks and bushes along Missouri River, view from Kathy Trail near Columbia, Missouri. October 23, 1999.
 Bushes on rocks along Missouri River, view from Kathy Trail near Columbia, Missouri. October 23, 1999.
 Pleated inkcap mushrooms (Parasola plicatilis) on a flowerbed behind Visitor Center in Lick Creek Park. College Station, Texas, June 21, 2018
 A log on South Rim Trail in Taughannock Falls State Park. Ithaca, New York, October 26, 2005
 South Rim Trail/FLT-NCT fork in Watkins Glen State Park. New York, October 13, 2005
 Sandy Hook Beach D near Visitor Center. New Jersey, February 11, 2007
 Dunes near Provincelands Visitor Center in Cape Cod. Massachusetts, January 31, 2004
 View of Ramon s Tooth from distance of 4 miles on the opposite side of Ramon Crater to the south-east from Mitzpe Ramon Visitor s Center. Road 40 to Eilat is seen near the horizon to the left, with Har Hadav (?) mountains behind it. Contrast of the picture was enhanced to decrease haze. The Middle East, May 3, 2001
 Texture of Cave of Brightness (Musfer Cavern, Dahl Al Misfir sinkhole) in Umm Al Shabrum south-west from Doha. Qatar, February 27, 2015
 Cave of Brightness (Musfer Cavern, Dahl Al Misfir sinkhole) from its bottom in Umm Al Shabrum south-west from Doha. Qatar, February 27, 2015
 Tyuonyi behind Visitor Center in Bandelier National Monument. New Mexico, near Los Alamos, May 26, 2008
 Caves behind Visitor Center in Bandelier National Monument. New Mexico, near Los Alamos, May 26, 2008
 Rocks behind Visitor Center in Bandelier National Monument. New Mexico, near Los Alamos, May 26, 2008
 Light beam in Cave of Brightness (Musfer Cavern, Dahl Al Misfir sinkhole) in Umm Al Shabrum south-west from Doha. Qatar, February 27, 2015
 Karst feature in Cave of Brightness (Musfer Cavern, Dahl Al Misfir sinkhole) in Umm Al Shabrum south-west from Doha. Qatar, February 27, 2015
 Ladder and ruins behind Visitor Center in Bandelier National Monument. New Mexico, near Los Alamos, May 26, 2008
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