 It was common for palaces and monumental structures to be made of this rough stone and then covered with stucco or with a cantera veneer.Very large and ornate architectural ornaments were fashioned from a very enduring stucco (kalk), especially in the Mayan region, where a type of hydraulic limestone cement or concrete was also used.In the case of the common houses, wooden framing, adobe, and thatch were used to build homes over stone foundations.