Chile (Central Region - Santiago de Chile)
Casa Colorada: Museo de Santiago
Just off the southeast corner of the Plaza de Armas, at Merced 860, you’ll find the Casa Colorada, built in 1769 and generally considered to be Santiago’s best-preserved colonial house. The two-storey mansion with its clay-tiled roof, its row of balconied windows giving onto the street and its distinctive, plum-red walls certainly provides a striking example of an eighteenth-century town residence. 
The house is built around two large patios, one of which you walk through to get to the Museo de Santiago (Tues-Fri 10am-6pm, Sat 10am-5pm, Sun 11am-2pm; CH$500, free on Sun) which occupies five of the Casa Colorada’s rooms. This rather humble museum is dedicated to the history of the city from pre-Columbian to modern times, which is illustrated mainly by scale models, maps and paintings. None of it is very slick, and there’s no English commentary, but each room has a detailed information panel in Spanish which, if you’re able or can be bothered to plough through, provides an excellent account of the various stages of Santiago’s development.