It is located at km 14 on the Merida-Progreso highway. It was one of the great urban centers that flourished in the northern part of the Yucatan Peninsula, standing out as one of the oldest cities, as there are data confirming its existence since 500 BC to 1500 AD. It covers about 17 sq. km in which there should be more than 8000 architectural structures. The city retains 12 sacbes or white roads, most of which start from the center and head towards the buildings in the periphery; one of them leads to Xlakáh cenote, which in Mayan means "Old Town" and which have been rescued objects of bone, stone and wood. The most outstanding building in this area is the Temple of the Seven Dolls. Through its central door you can see a solar phenomenon each equinox.