1. Death Valley, CA
A section of the Mojave Desert.
2. Kilauea, HI
Kilauea on the Big Island of Hawaii, sends streams of lava steaming into the Pacific Ocean.
3. Monument Valley, UT
The sandstone buttes of Monument Valley.
4. Niagara Falls, NY
5. Redwoods, CA
The tallest trees on the planet.
6. Grand Canyon, AZ
7. Mammoth Cave, KY
8. Florida Everglades
The Everglades are a natural region of tropical wetlands in southern tip of Florida.
9. Hubbard Glacier, AK
10. Black Hills, SD
Harney Peak within the Black Hills National Forest, is the highest east of the Rockies.
11. The Mississippi
This monster river system drains 31 US states and is the fourth longest in the world.
12. Bryce Canyon, UT
13. Mt. Desert Island, ME
14. Crater Lake, OR
Collapsed volcano, now a deep blue lake in southern Oregon.
15. Arches, UT
16. Yosemite Valley, CA
Looking down the Yosemite Valley, you can see Bridalveil Falls and the granite cliff of Half Dome in the distance.
17. Carlsbad Caverns, NM
The caverns’ “Big Room” is the third largest cave chamber in North America.
18. Old Faithful, WY
This geyser in Yellowstone national park erupts a 140-foot spout of water at regular 45- to 120-minute intervals.