Mission San Jose de Tumacacori, Arizona
This historic mission in what is now Arizona was built in the early 1800s. It took a long time to complete this building, with the mission's monks selling land to local ranchers to fund the construction. Today, Tumacacori is part of a national historic park, so the buildings are easily accessible and well-preserved. This abandoned mission is a great example of the authentic architecture that once defined the area that is now the American Southwest.