There are three ruins near Camp Verde north of Phoenix. In Phoenix is Pueblo Grande near the east end of the airport. South of Phoenix is a one of a kind ruins at Casa Grande Ruins National Monument. East of Phoenix at Globe is a city owned ruins that has partially been rebuilt. These are all ruins of a culture that existed in the valley from about the time of Christ until the mid 1400's. Most of these ruins are different in the type of architecture that was used. The largest, a four story structure made of an adobe like material, is at Coolidge, AZ, at Casa Grande Ruins National Monument.