Across
- 2. - Italian city known for its leaning tower.
- 4. - Famous waterfall between the US and Canada.
- 7. - Agra's iconic white marble mausoleum.
- 8. - Mayan city in Mexico's Yucatan Peninsula.
- 9. - Ancient Egyptian monumental tomb.
- 11. - Prehistoric stone monument in England.
- 13. - Greek citadel in Athens.
- 15. - Ancient city carved into Jordan's cliffs.
- 16. - Hindu temple complex in Cambodia.
- 18. - Incan citadel atop Peruvian mountains.
- 19. - Ancient Roman amphitheater.
Down
- 1. - Former Byzantine cathedral in Istanbul.
- 3. - Greek temple on the Athenian Acropolis.
- 5. - Rio de Janeiro's massive statue on a hill.
- 6. - Remote Polynesian island with iconic statues.
- 10. - Longest wall, built in China's ancient history.
- 11. - Iconic figure, like the Statue of Liberty.
- 12. - Parisian landmark made of iron.
- 14. - Incan citadel atop Peruvian mountains.
- 17. - Location of the Sphinx and the Great Pyramid.