1. Machu Picchu, Peru: This Incan city, located on a mountaintop in the Andes, is a must-visit for anyone interested in ancient South American culture.

2. Angkor Wat, Cambodia: This temple complex is the largest religious monument in the world and the most important archaeological site in Southeast Asia.

3. Petra, Jordan: This ancient city was carved out of the red sandstone cliffs in the Jordanian desert.

4. Athens, Greece: The cradle of Western civilization boasts numerous ancient ruins and archaeological sites, including the Acropolis and the Parthenon.

5. Rome, Italy: This city is a vast open-air museum with numerous ancient ruins and landmarks, including the Colosseum, the Pantheon, and the Roman Forum.

6. Giza, Egypt: The pyramids of Giza, along with the Sphinx, are some of the most famous ancient landmarks in the world.

7. Chichen Itza, Mexico: This ancient Mayan city features well-preserved structures and artifacts from this fascinating civilization.

8. Stonehenge, England: This prehistoric monument consisting of massive stone circles continues to intrigue historians and archaeologists alike.

9. Pergamon, Turkey: Once a center of learning and culture, this ancient city on the Aegean Sea boasts impressive ruins, including the Great Altar of Pergamon.

10. Tikal, Guatemala: This ancient Mayan city flourished for over a thousand years and features some of the most impressive ancient architecture and artwork in Central America.