This structure referred as “El Castillo” (The Castle), measures 17 meters high and represents the tallest construction in all the north central coast of Quintana Roo. Investigations undertaken in this building have permitted for the identification of two different construction phases. The first of these consisted of the building of three bodies and a temple with two entrances at its peak; the principle entrance was oriented toward the west. At the top of its stairway is an alter, were investigations have discovered two offerings containing a total of 264 ornamental objects fashioned from green stone or jadeite and shell. Beads, lip rings, ear flares, plaques, pendants, rings, a knife made of flint and a clay incensory were all found among the offerings. On the east side of the subustructure is an entrance, over which a frieze of two stucco herons served as architectual ornamentation. During the second stage of construction, the first temple was covered and two bodies were added, crowned by a double-bodied temple which can be seen today. A peculiar characteristic of this building is an architectual element referred to as a circular concave “tower” situated over a roof; its exterior is adorned with small flat stones resembling protuberances, similar to the spine-like thorns of the ceiba (sacred three of the maya). These probably simulated forms common to some clay incensories.