1. Yellowstone
2. Niagara Falls
3. Washington DC
4. NY City
5. Gettysburg
6. Maine coast
7. Smoky Mountains
8. Florida Everglades
9. New Orleans
10. Grand Canyon
11. Alaska
12. Road to Hana (Maui)
13. Mount Rushmore
14. Zion National Park
15. Glacier National Park
16. Hot Springs, Arkansas
17. Redwood National/State Park
18. Minnesota boundary waters (or north shore of Lake Superior)
19. Rocky Mountain National Park
20. Boston (Freedom Trail) or Philly Reading Terminal (Liberty Bell)