Across
- 2. Ancient Maltese underground burial site
- 4. Roman aqueduct system
- 5. Greek city-state of ancient Olympics
- 7. Turkish cave city
- 11. Italian Renaissance basilica
- 12. Peruvian Incan citadel
- 13. Mexican Mayan pyramid
- 16. Greek island archaeological site
- 17. Egyptian temple complex on the Nile
- 19. Japanese mountain sacred to pilgrims
- 22. French island prison
- 25. Japanese ancient burial mounds
- 26. Sudanese ancient pyramids
- 28. Egyptian temple complex
- 30. Moroccan ancient city
- 32. Indian cave temples
- 33. Enigmatic Easter Island statues
- 35. Tibetan cliffside monastery
- 36. Ethiopian monolithic rock-hewn churches
- 39. Ancient Persian capital
- 40. Ancient Jordanian desert structure
Down
- 1. Chinese limestone karst formations
- 3. Iranian ancient city
- 6. Chilean moai statues site
- 8. Turkish underground city
- 9. Maltese megalithic temple
- 10. Egyptian obelisk city
- 11. Italian Renaissance cathedral city
- 14. Turkish temple complex
- 15. Russian walled fortress
- 18. Cambodian temple complex
- 20. Uluru
- 21. French medieval abbey
- 23. Cambodian jungle temple complex
- 24. Cambodian jungle temple
- 27. Greek island with archaeological riches
- 29. Prehistoric English stone circles
- 31. Jordanian desert citadel
- 34. Massive Australian rock formation
- 37. Indian palace-fort complex
- 38. Jordanian ancient city