Like nearly every Latin American city, Santiago has at its heart a civic square open to the public and brimming with life (and these squares are often named Plaza de Armas). Santiago’s Plaza de Armas is distinguished by two fine buildings, the Central Post Office and the Metropolitan Cathedral. Both buildings were constructed in the 18th century, although the cathedral was much altered in later years. The square is full of lively activity—an excellent spot for people-watching and getting to know this city’s energy.