Santiago de Chile.

Start here to understand Santiago’s original center and to orient yourself among its major historic facades. The square is a public outdoor stop; surrounding museums and churches are separate visits.

The 1541 street grid radiates from this civic square, and several buildings around it represent different phases of government, religion and public service. Stand in the plaza first, then choose between the cathedral, the former Royal Audience museum and the post-office facade according to your interests.

Plaza de Armas was the centerpiece of the grid laid out for Santiago after its founding in 1541. Pedro de Gamboa organized that early plan under Pedro de Valdivia, placing the square at the core of the new town. The arrangement is still legible: straight blocks lead away from a space ringed by institutions. The cathedral speaks to the city’s religious role; the former Royal Audience building connects colonial justice with Chile’s early republic; the post office occupies another historic site on the north edge. Looking around the square before going inside any building makes those different civic functions easier to distinguish. It remains a place of passage as well as history, so the best first move is to orient yourself from its open space.

• The Metropolitan Cathedral faces the square.
• The former Royal Audience houses the National History Museum.
• The historic post-office building occupies part of the north side.

Use the square to compare the surrounding buildings before entering any one of them.

Check individual venues separately; being on the plaza does not imply access to their interiors.