7. El Rey Ruins
A very good place for sightseeing, El Rey Ruins are a very popular attraction once you are in the city of Cancun. Once an abode of the early Mayans, the ruins now house a vast colony of iguanas that nest here. One can engage in photography here as there are times when one can see himself surrounded by hundreds of iguanas and that is a real experience one cannot get any where else. Visitors often make a tour to this place in their free time as its a small area and its exploration takes about half an hour.
Image credit: nileguide