Google has just added a bunch of ancient Mayan (and other meso-american cultures) sites to their Street View collection, including:

• pyramids at Chichen Itza & Uxmal
• Zapotec city of Yagul
• Mayan archaeological site at Kabah
• Maya walled city of Tulum
• ancient Toltec capital Tula
• Cholula
• Paquimé
• Cuicuilco
• Becan

Story found at Google Maps Mania