Chaco Canyon

On Saturday, we took a field trip to Chaco Canyon, the home of ancient ruins and petroglyphs. It was amazing to me that these buildings have been around for nearly a thousand years. An ancient people, who we would assume weren't advanced, had built something that could last that long. How many structures have we built today that could be this durable? And it's not like they were little mud huts. This was a massive community. Here are some pictures:

This is pueblo bonito. These were the largest ruins.

The inside of a kiva. 

Petroglyphs.

These last pictures are taken inside Pueblo Bonito.