Santiago Sightseeing: Landmarks and Museums
Three architectural eras sit within a short walk of each other in central Santiago: Spanish colonial around Plaza de Armas, French neoclassical at La Moneda, and glass-and-steel modern at Costanera Center.
Colonial: Plaza de Armas
Founded alongside the city in 1541, Plaza de Armas is ringed by the Metropolitan Cathedral, with its Italianate barrel-vaulted interior, the colonial Correo Central, and the National History Museum. Entry to the cathedral is free daily from 09:00 to 19:00.
Neoclassical: Palacio de La Moneda
Joaquín Toesca completed the presidential palace in 1805; it survived the bombing of the 1973 coup and remains the seat of Chile’s government. The free Changing of the Guard runs at 10:00am on an alternating day pattern through the year, plus 11:00am on weekends, confirmed at visitaspatrimonio.presidencia.cl . Below the plaza, the Centro Cultural La Moneda shows free contemporary Chilean art daily, 10:00am to 7:30pm. A combined Santiago city tour covering the historic core is bookable on GetYourGuide if you’d rather not plan the walking order yourself.
Modern: Sky Costanera
The 300-meter Gran Torre Santiago in Providencia (Metro Tobalaba) carries South America’s tallest observation deck across floors 61 and 62, with 360-degree views of the Andes and the Central Valley, open 10:00am to 10:00pm with last ascent at 9:00pm. Regular admission is CLP 25,000 for adults, rising to CLP 30,000 during the 6:00 to 8:00pm sunset window; children aged 5 to 12 pay CLP 10,000 in either slot, and under-5s are free. Skip-the-line Sky Costanera tickets are on Viator , worth it for the sunset slot specifically since that queue runs longest.
Where the free museums are
Santiago’s state museums, the Museo Nacional de Bellas Artes (a 1910 glass-domed building modeled on the Petit Palais), the Museo Histórico Nacional on Plaza de Armas, and the Museo Nacional de Historia Natural, all carry permanent free admission regardless of nationality. The privately run Museo Chileno de Arte Precolombino, on Bandera 361, is the exception: foreign adults pay CLP 12,000, foreign students CLP 5,000, with a CLP 1,000 rate reserved for Chilean university students only. Its 7,000-year-old Chinchorro mummies and Mapuche funerary carvings are worth the entry fee regardless; details at precolombino.cl .
Getting between it all
Plaza de Armas, La Moneda, and the Precolombino museum sit within a 15-minute walk of each other in Centro; Sky Costanera is a Metro ride east to Tobalaba.
Before you go
Confirm La Moneda’s guard-change day before building a morning around it; the schedule alternates between odd and even calendar days depending on the month, and getting it wrong means an empty plaza. For the buildings on this list that only open up with a booking, see the attraction tours guide to Santiago .