Palace of Cortés, Cuernavaca
The Palace of Cortés (Spanish: Palacio de Cortés) in Cuernavaca, Mexico, built between 1531 and 1535, is the oldest conserved colonial-era civil structure in the continental Americas. The architecture is a blend between Gothic and Mudéjar, typical of the early 16th century colonial architecture.
Source: Wikipedia — Palace of Cortés, Cuernavaca (CC BY-SA 4.0)