In progress

Ancient Mogollon Ruins at Gila Cliff Dwellings National Monument in the Gila Wilderness, New Mexico
Gila Cliff Dwellings National Monument in the Gila Wilderness, New Mexico
Mesa Verde National park
Kiva Ladder at Spruce Tree House in Mesa Verde National Park in Colorado.
The Aleutian Islands and the Bering Sea
Humvee used by defense personnel on Big Diomede Island in The Aleutian Portal, by Christopher Cartwright