Hiking down to view Cliff Palace at Mesa Verde in Colorado USA was awe inspiring imagining how the Hopi Natives survived in these cliff dwellings.Make sure you book your tour ahead of time online with the National Park Service. We took the twilight/sunset photography tour. I was hoping the sun would be shining on Cliff Palace with orange hues, but we were in the shadows. I guess it depends on the time of year you visit. If you're in the American Southwest, it is a must see!