From UNESCO’s site at http://whc.unesco.org/en/list/702, this site includes:

Morelos and Puebla States Municipalities: Atlatlauhcan, Cuernavaca, Tetela del Volcan, Yautepec, Ocuituco, Tepoztlan, Tlayacapan, Totolapan, Yecapixtla and Zacualpan de Amilpas in Morelos. Calpan, Huetotzingo and Tochimilco in Puebla.