 Current Mission Control Center in NASA Space Center Museum. Houston, Texas, February 16, 2008
 Apparatus in current Mission Control Center in NASA Space Center Museum. Houston, Texas, February 16, 2008
 Historic Mission Control Center in NASA Space Center Museum. Houston, Texas, February 16, 2008
 Mysterious buttons in Historic Mission Control Center in NASA Space Center Museum. Houston, Texas, February 16, 2008
 Junk rocket in NASA Space Center Museum. Houston, Texas, February 16, 2008
 Kids Place in NASA Space Center Museum. Houston, Texas, February 16, 2008
 Guts of Saturn Rocket in NASA Space Center Museum. Houston, Texas, February 16, 2008
 Wires of Saturn Rocket in NASA Space Center Museum. Houston, Texas, February 16, 2008
 Engine of Saturn rocket in NASA Space Center Museum. Houston, Texas, February 16, 2008
 Tubes and wires of Saturn Rocket in NASA Space Center Museum. Houston, Texas, February 16, 2008
 Saturn Rocket in junk rocket park of NASA Space Center Museum. Houston, Texas, February 16, 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
 Tyuonyi behind Visitor Center in Bandelier National Monument. New Mexico, near Los Alamos, May 26, 2008
 Ladder and caves behind Visitor Center in Bandelier National Monument. New Mexico, near Los Alamos, May 26, 2008
 View from a trail behind Visitor Center in Bandelier National Monument. New Mexico, near Los Alamos, May 26, 2008
 Ladder and ruins behind Visitor Center in Bandelier National Monument. New Mexico, near Los Alamos, May 26, 2008
 Walls of Frijoles Canyon behind Visitor Center in Bandelier National Monument. New Mexico, near Los Alamos, May 26, 2008
 Walls of Frijoles Canyon behind Visitor Center in Bandelier National Monument. New Mexico, near Los Alamos, May 26, 2008
 Sandy Hook Beach D near Visitor Center. New Jersey, February 11, 2007
 Model of Walls Unit in Prison Museum, with Main Building in the center, Infirmary to the left and Dining to the right. Huntsville, Texas, February 23, 2008
 Ramon Crater, landscape below the Visitor Center. Mitzpe Ramon, the Middle East, February 1, 2001
 Basalt prisms in Ramon Crater, below the Visitor Center seen on the top. Mitzpe Ramon, the Middle East, February 1, 2001
 A creek with basalt prisms in Ramon Crater, below the Visitor Center seen on the top. Mitzpe Ramon, the Middle East, February 1, 2001
 Stone terraces on the bottom of Ramon Crater, down from the Visitor Center. Mitzpe Ramon, the Middle East, February 1, 2001
 View of Ramon Crater to south-west from a lookout near Visitor Center. Mitzpe Ramon, the Middle East, February 1, 2001
 A dry river on a bottom of Ramon Crater. Mitzpe Ramon Visitor Center is seen perched on the top of the rim to the north. The Middle East, February 1, 2001
 A foot of a hill on a bottom of Ramon Crater. Mitzpe Ramon Visitor Center is seen perched on the top of the rim to the north. The Middle East, February 1, 2001
 Blue water lily near Visitor Center in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, April 5, 2009
 Blue water lily in front of Visitor Center in Mercer Arboretum and Botanical Gardens. Humble (Houston area), Texas, September 5, 2009
 Hills covered by tanned black stones on the bottom of Ramon Crater. Mitzpe Ramon Visitor Center is seen perched on the top of the rim to the north. The Middle East, February 1, 2001
 Caterpillar on a leaf in Cockrell Butterfly Center of Houston Museum of Natural Science. Houston, Texas, February 14, 2009
 Dunes near Provincelands Visitor Center in Cape Cod. Massachusetts, January 31, 2004
 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
 Emerald Swallowtail (Papilio Palinurus) in Cockrell Butterfly Center of Houston Museum of Natural Science. Houston, Texas, February 14, 2009
 View of Ramon Crater to north-east from a lookout near Visitor Center, with a road to Eilat. Mitzpe Ramon, the Middle East, February 1, 2001
 Close-up of Emerald Swallowtail (Papilio Palinurus) in Cockrell Butterfly Center of Houston Museum of Natural Science. Houston, Texas, February 14, 2009
 West Bay towers from an empty space behind City Center Mall. Doha, Qatar, January 23, 2012
 Visitor Center on Villiam Street after snowfall, at morning. New Bedford, Massachusetts, December 27, 2004
 Dunes with wind blown snow near Provincelands Visitor Center in Cape Cod. Massachusetts, January 31, 2004
 Mixture of sand and snow on dunes near Provincelands Visitor Center in Cape Cod. Massachusetts, January 31, 2004
 Blue flower of Lignum Vitae (Gaiac tree, Guaiacum sanctum) in Cockrell Butterfly Center of Houston Museum of Natural Science. Houston, Texas, February 14, 2009
 Towers at Conference Center Street in West Bay near City Center. Doha, Qatar, February 10, 2014
 Conference Center Street in West Bay, opposite to City Center. Doha, Qatar, February 20, 2014
 Conference Center Street near City Center Mall in West Bay at morning. Doha, Qatar, February 10, 2014
 Conference Center Street in West Bay, opposite to City Center, at morning. Doha, Qatar, February 20, 2014
 Towers at Conference Center Street in West Bay opposite to City Center. Doha, Qatar, February 10, 2014
 Butterfly head in Cockrell Butterfly Center of Houston Museum of Natural Science. Houston, Texas, February 14, 2009
 Sitting butterfly in Cockrell Butterfly Center of Houston Museum of Natural Science. Houston, Texas, February 14, 2009
 Speckled butterfly in Cockrell Butterfly Center of Houston Museum of Natural Science. Houston, Texas, February 14, 2009
 Conference Center Street near City Center Mall in West Bay at morning dusk. Doha, Qatar, February 10, 2014
 Black and orange butterfly in Cockrell Butterfly Center of Houston Museum of Natural Science. Houston, Texas, February 14, 2009
 Close-up of a black and red butterfly in Cockrell Butterfly Center of Houston Museum of Natural Science. Houston, Texas, February 14, 2009
 Black and red striped butterfly in Cockrell Butterfly Center of Houston Museum of Natural Science. Houston, Texas, February 14, 2009
 Flying Dutchman butterfly in Cockrell Butterfly Center of Houston Museum of Natural Science. Houston, Texas, February 14, 2009
 Black and red butterfly on a leaf in Cockrell Butterfly Center of Houston Museum of Natural Science. Houston, Texas, February 14, 2009
 Water tupelo trees near 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
 Cypress needles on a boardwalk of Visitor Center Trail in Barataria Preserve. South from New Orleans, Louisiana, December 22, 2006
 Bottom of Makhtesh Ramon (crater). Visitor Center is perched on the top of the cliff to the left. The Middle East, October 18, 2001
 Butterfly on a flower of tropical milkweed in Cockrell Butterfly Center of Houston Museum of Natural Science. Houston, Texas, February 14, 2009
 Red Peacock Butterfly (Anartia amathea) in Cockrell Butterfly Center of Houston Museum of Natural Science. Houston, Texas, February 14, 2009
 Black butterfly with white stripes in Cockrell Butterfly Center of Houston Museum of Natural Science. Houston, Texas, February 14, 2009
 Close-up of a feeding Owl Butterfly (Caligo) in Cockrell Butterfly Center of Houston Museum of Natural Science. Houston, Texas, February 14, 2009
 Close-up of Dryadula Phaetusa(?) butterfly in Cockrell Butterfly Center of Houston Museum of Natural Science. Houston, Texas, February 14, 2009
 Orange butterfly Dryadula Phaetusa(?) in Cockrell Butterfly Center of Houston Museum of Natural Science. Houston, Texas, February 14, 2009
 Rice Paper Butterfly (Idea leuconoe) in Cockrell Butterfly Center of Houston Museum of Natural Science. Houston, Texas, February 14, 2009
 Close-up of Red Peacock Butterfly (Anartia amathea) in Cockrell Butterfly Center of Houston Museum of Natural Science. Houston, Texas, February 14, 2009
 Butterfly on pink Pentas lanceolata flowers in Cockrell Butterfly Center of Houston Museum of Natural Science. Houston, Texas, February 14, 2009
 Dolphin Energy Tower on Conference Center Street in West Bay, opposite to City Center. Doha, Qatar, February 20, 2014
 Butterfly on Pentas lanceolata (Penta starla) flowers in Cockrell Butterfly Center of Houston Museum of Natural Science. Houston, Texas, February 14, 2009
 Owl Butterfly (Caligo) feeding on a rotten star fruit in Cockrell Butterfly Center of Houston Museum of Natural Science. Houston, Texas, February 14, 2009
 A stone Lodge near Leach Pond and Visitor Center in Borderland State Park. North Easton, Massachusetts, October 16, 2004
 Water tupelo trees in a swamp near Visitor Center Trail in Barataria Preserve. South from New Orleans, Louisiana, December 22, 2006
 Basalt prisms in Makhtesh Ramon (crater). Visitor Center is perched on the top of the cliff to the left. The Middle East, October 18, 2001
 Owl Butterfly (Caligo) with dramatic eyespots on the underside of the lower wing in Cockrell Butterfly Center of Houston Museum of Natural Science. Houston, Texas, February 14, 2009
 A lake and a bench near a trail south-west from Visitor Center in Onondaga Cave State Park. Leasburg, Missouri, September 24, 2005
 A bronze likeness of the current American president Bill Clinton at Museum of American History. Washington DC, February 4, 1998.
 Pleated inkcap mushrooms (Parasola plicatilis) on a flowerbed behind Visitor Center in Lick Creek Park. College Station, Texas, June 21, 2018
 Various spring wildflowers behind Visitor Center in Washington-on-the-Brazos State Historic Site. Washington, Texas, April 4, 2022
 Air and Space Museum. Washington DC, February 6, 1998.
 Pleated inkcap mushrooms (Parasola plicatilis) grown after a rain on mulched lawn behind Visitor Center in Lick Creek Park. College Station, Texas, June 21, 2018
 Construction area of Doha Convention Center in a backyard of City Center Mall, with Rotana Hotel in background. Doha, Qatar, February 19, 2011
 Blue Wave Butterfly (Myscelia cyaniris) with bands of iridescent blue across the upper wing surface in Cockrell Butterfly Center of Houston Museum of Natural Science. Houston, Texas, February 14, 2009
 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
 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
 Green frog in Cockrell Butterfly Center of Houston Museum of Natural Science. Houston, Texas, January 22, 2011
 Honey bees in Cockrell Butterfly Center of Houston Museum of Natural Science. Houston, Texas, January 22, 2011
 Pink spotted swallowtail(?) in Cockrell Butterfly Center of Houston Museum of Natural Science. Houston, Texas, January 22, 2011
 Sitting green frog in Cockrell Butterfly Center of Houston Museum of Natural Science. Houston, Texas, January 22, 2011
 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
 Islamic Da wah Center and trolley tracks on Main Street in downtown. Houston, Texas, January 21, 2008
 River Walk under E. Houston(?) Street Bridge. San Antonio, Texas, February 9, 2008
 Construction of Convention Center behind City Center Mall. Doha, Qatar, January 27, 2012
 Towers behind Conference Center Street near City Center in West Bay. Doha, Qatar, January 21, 2014
 View behind Conference Center Street near City Center in West Bay. Doha, Qatar, January 21, 2014
 Conference Center Street opposite to City Center in West Bay. Doha, Qatar, September 7, 2015
 Small butterfly in Cockrell Butterfly Center of Houston Museum of Natural Science. Houston, Texas, January 22, 2011
 Black and red striped butterfly in Cockrell Butterfly Center of Houston Museum of Natural Science. Houston, Texas, January 22, 2011
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