Ringed by platforms and unique diagonal stairways, this plaza was the main approach to Cholula's pyramid. Three large stone slabs on its east, north and west sides are carved in the Veracruz interlocking scroll design. At its south end is an Aztec-style altar in a pit, dating from shortly before the Spanish conquest. On the mound’s west side is a reconstructed section of the latest pyramid, with two earlier exposed layers.