Izamal, Yucatán is known as the Yellow City, as the majority of its buildings are painted with a local paint made from ash and sulfur. It is one of the oldest continually-inhabited cities in North America and the people of Izamal still speak Mayan as well as Spanish. It was founded some time between 750 and 200 B.C. and many of the original buildings are visible from city center. We were lucky enough to get a tour of the monastery from one of the monks who also allowed us to go into the cloisters and private areas.