Location: Mesa Verde National Park, Colorado
First Built: between 1190 - 1260
Who knew that a structure built beneath an overhanging cliff could withstand such an amazing test of time? Cliff Palace was built more than 800 years ago by the Ancient Pueblo Peoples. They used sandstone, mortar, and wooden beams to make it. And it's still there -- incredibly well preserved -- and available to tour with park rangers today.
Click through for more unbelievably old buildings that have survived for hundreds of years, and are still standing in the United States today. Like this next one -- which is even older!