The Toltec capital, located in the modern state of Hidalgo, Mexico, then identified as Tollán. Founded on an already existing settlement in c 960 AD, it grew to cover 11 sq. km. The site gained importance c 800 AD after Teotihuacán fell. There was a stepped pyramid on which there was a temple and buildings had colonnaded halls. At its height, there were some 1000 mounds and at least as many low rectangular house mounds, and five ball courts. The monumental civic architecture featured Talud-Tablero architecture. In sculpture, the most diagnostic figures are the Chac Mools, reclining human figures holding offering dishes, and the famous Atlantean statues that supported the roof of Pyramid B. The earliest pre-architectural phases at Tula are characterized by the presence of Coyotlatelco ware, but the dominant ceramic occurring after c1000 is Mazapan ware. Imported Plumbate Ware also occurs frequently. Although the Toltec are associated with the introduction of metallurgy into central Mexico, no metals have been found. Tula was violently destroyed, probably by a Chichimec group, in either 1156 or 1168 AD (depending on how one reads the Calendar date). Although its exact location is not certain, an archaeological site near the contemporary town of Tula in Hidalgo state has been the consistent choice of historians.