A florid style of architecture prevalent in, and named after, the Puuc region in the north-central Maya area of Mexico. Puuc buildings have facings of thin squares of limestone veneer over a cement and rubble core. Key features include boot-shaped vault stones, decorated cornices, round columns in doorways, engaged or half-columns in long rows, and the use of stone mosaics on the upper façades of buildings. Uxmal has one of the best collections of Puuc architecture.