Obelisk from Hypostyle, Temple of Amun, Karnak, Luxor, Egypt, January 26, 1973

Columns in Forecourt of Amenophis III, Temple of Luxor, Egypt, January 27, 1973

Sunrise Light on Facade of Temple of Ramesses II, Abu Simbel, Egypt, February 1, 1973

Entrance Gate to Enclosure of Step Pyramid, Saqqara, Egypt, February 3, 1973

Willows, Hahns Peak Road, Colorado, May 27, 1975

Mountainside, Rabbit Ear Pass, Colorado, May 28, 1975

Galápagos Tortoises Mating, Alcedo Rim, Galápagos Islands, May 5, 1966

Pigmented Marine Iguana, Cevallos Point, Hood Island, Galápagos Islands, May 27, 1966

Newest Lava and Burned Mangrove, Cartago Bay, Isabela Island, Galápagos Islands, May 7, 1966

Beach with Black Rocks, Saltwort and Mountain, San Cristóbal Island, Galápagos Islands, May 22, 1966

Grassy Landscape and Palo Santos, James Bay, James Island, Galápagos Islands, April 12, 1966

Hillside, Buccaneer Cove, Santiago Island, Galápagos Islands, May 9, 1966

Usnea Lichen on Palo Santo, Barrington Island, Galápagos Islands, May 21, 1966

Palo Santo, Cactus and Lichen, Barrington Island, Galápagos Islands, May 21, 1966

Stone Lion, Delos, Greece, April 18, 1967

Aspen Trunks and Leaves, Aspen, Colorado, September 28, 1951

Cloud Formations, Tesuque, New Mexico, July 1977

Sunset Clouds, Tesuque, New Mexico, July 1977

Aspen Trunk and Fallen Leaves and Rock, Maroon Lake Road, Aspen, Colorado, October 4, 1951

Evening Clouds, Tesuque, New Mexico, June 3, 1977