Across
- 3. Colosseum, gladiators, Roman Empire.
- 4. Pyramids, pharaohs, Nile River.
- 5. Great Wall, dynasties, inventions.
- 6. Harappa, Mohenjo-Daro, ancient cities.
Down
- 1. Tigris-Euphrates, cradle of civilization.
- 2. Democracy, philosophers, ancient Olympics.