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Photo: PoolPs, CC BY-SA 4.0 via Wikimedia Commons
Elaborate large cathedral full of colonial-era religious paintings. The biggest church in Cuzco, in front of Plaza de Armas. As a tourist the entrance is S/25. If you go in a "misa" (mass) between 06:30–09:00, it is free. No photography allowed.
The Cathedral of Cusco or Cathedral Basilica of the Virgin of the Assumption is the main temple of the city of Cusco, in Peru and houses the headquarters of the Archdiocese of Cusco. The Cathedral Basilica of Cusco, together with the Triunfo temple make up the Cathedral Complex, it is located in the northeast sector of the current Plaza de Armas of Cusco. In the place that, during the Inca period, was occupied by both the Suntor Wassi and the Kisoarkancha or Palace of the eighth Inca Viracocha. The complex occupies an area of 3,920 square meters and is the most important religious monument in the Historic Center of Cusco.
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Extensive museum of pre-Inca, Inca, and colonial artifacts. Labels in English and Spanish, though the descriptions in English are sometimes pretty different from the ones in Spanish.
The park square has churches, shops, restaurants and bars surrounding it, and is a great place to spend an afternoon. The historical center of Cuzco is beautiful, but you will have to deal with all the street vendors and hawkers of cheap paintings and other souvenirs. They are everywhere in and around the Plaza de Armas. They somewhat spoil the experience.
Museo Machu Picchu, Casa Concha
The largest collection of Machu Picchu artifacts in the world. These artifacts were collected by Yale University researcher Hiram Bingham beginning in 1912 and returned to Peru in 2011. The museum is housed in a late 18th-century house called Casa Concha.
Monasterio de Santa Catalina de Nuestra Señora de Los Remedios
Also a collection of religious art. Admission with the boleto turistico.
Displays a collection of popular art featuring handcrafts of the modern era.
Twelve-angle stone
A large stone in one wall has 12 sides and 12 angles. This one has become almost a symbol of Cusco and is a striking example of the precision of Inca architecture and stonework.