Across
- 1. Incan stonework
- 3. Mayan step pyramids
- 4. Babylon hanging gardens
- 7. Greek Parthenon city
- 8. Roman aqueduct
- 11. Viking longhouse
- 12. Egyptian pyramids
- 14. Roman forum
- 15. Indian rock-cut caves
Down
- 2. Persian columns
- 5. Roman dome, Pantheon
- 6. Chinese Great Wall
- 9. Mesopotamian ziggurat
- 10. Japanese shrine
- 13. Greek column type