Isabelline architecture

plateresque architecture

A richly decorative style of Spanish architecture of the 16th century; said to resemble the intricate work of Spanish silversmiths in delicacy, hence its name (plata is the Spanish word for silver). Particularly applied to many Spanish Colonial buildings in the Americas from the 16th into the 18th centuries.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.