Anchorage from Island, Punta Pitt, San Cristóbal Island, Galápagos Islands, May 24, 1966

Salt Lagoon and Mountains, San Cristóbal Island, Galápagos Islands, May 23, 1966

View from Top (South), Bartholomew Island, Galápagos Islands, May 12, 1966

Red Sand and Black Lava Rocks, Buccaneer Cove, Santiago Island, Galápagos Islands, May 10, 1966

Seal-whitened Rocks and Opuntia, Barrington Island, Galápagos Islands, May 20, 1966

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

Saltwort and Red Clay, San Cristóbal Island, Galápagos Islands, May 23, 1966

Column Drum and Foundation, Temple of Zeus, Olympia, Greece, March 18, 1971

Honeycomb Lava, Nakalele Point, Maui, March 3, 1979

Grave Circle, Mycenae, Greece, March 15, 1971

Waves on Beach, Corcovado Park, Costa Rica, March 18, 1984

Second Pylon, Medinet Habu, West Thebes, Egypt, January 23, 1973

Deceased Led by Isis, Tomb 66 of Nefertari, Valley of the Queens, Egypt, January 20, 1973

Inscriptions on Outer Wall of Hypostyle, the Ramesseum, West Thebes, Egypt, January 23, 1973

Hacienda Vihagua Gardens, San Jose, Costa Rica, March 9, 1984

Interior Temple of Sethos I, West Thebes, Egypt, January 22, 1973

Portico, Temple of Sethos I, West Thebes, Egypt, January 22, 1973

Mangrove Roots, Bear Lake Trail, Everglades National Park, Florida, February 24, 1974

Brown and Black Lava and Split Mountain, Sullivan Bay, James Island, Galápagos Islands, March 10, 1966

Brown and Black Lava and Split Mountain, Sullivan Bay, James, Galápagos Islands, March 10, 1966