What makes Plaza de Armas & Cathedral historically important?
Cusco's Plaza de Armas occupies what was once Huacaypata, the great Inca ceremonial square where festivals, military parades, and ritual offerings took place at the centre of the empire. When the Spanish conquered the city in 1533, they shrank the plaza to its current size and surrounded it with arcaded colonial buildings, a massive Cathedral, and the ornate Jesuit Church of La Compañía — both built deliberately on top of Inca palace foundations. The result is a layered architectural palimpsest that you can read if you know where to look: Inca stonework visible at the base of colonial walls, Spanish baroque towers rising from foundations laid by Inca masons. The Cathedral of Cusco, consecrated in 1654, is the most important church in the Peruvian highlands. Its interior holds a famous painting of the Last Supper in which Christ and the apostles dine on cuy (guinea pig) and chicha (corn beer) — a uniquely Andean interpretation of the biblical scene by the Cusco School of painting, which blended European religious subjects with indigenous Andean details. The plaza itself is the social hub of the city: flower sellers, shoe shiners, and portrait photographers work the arcades by day, while at night the illuminated Cathedral and La Compañía glow against the Andean sky, and the balcony restaurants along the colonnades fill with travelers watching the scene below.