2. Mesa Verde National Park, United States
Though the expansive tribe of Pueblo Indians created several unique dwellings throughout the American Southwest, perhaps their most impressive work happened in the mountains of Mesa Verde. The area of Mesa Verde has been populated by Native Americans since 7500 BCE. Over the course of time, the people developed advanced crafting techniques that allowed them to carve permanent domiciles in the rock. Their accomplishment was first recognized in 1906, when Teddy Roosevelt selected Mesa Verde as one of the nation’s first national parks (it’s number 7, in fact). Today, Mesa Verde National Park is home to the largest archaeological preserve in the United States.