Across
- 3. New Mexico ruins
- 6. Chicago's tall Willis
- 9. SF's famous span
- 10. Famous Civil War site
- 12. California's granite cliffs
- 15. Mountain presidents
- 16. Silicon tech hub
- 18. D.C. dome building
- 20. Border-spanning waterfall
- 22. Utah's stunning canyon
- 23. Pilgrims' landing spot
- 24. Boulder dam's name now
- 25. Historic Boston defense
Down
- 1. Arizona's famous canyon
- 2. San Antonio battle site
- 4. Civil War siege site
- 5. New York's gift
- 7. Famous western trail
- 8. Liberty in NYC
- 11. Monument Valley setting
- 13. Kentucky's vast cave
- 14. Washington's diverse park
- 17. Maine's coastal park
- 19. D.C. memorial
- 21. Montana's icy park