The Sun Temple
In Quechua, “qori” means gold and “cancha” is a wall or enclosure. The gray wall outside the Qorikancha was plated with gold when the Spanish first arrived. It didn’t take them long to take the gold to Spain and build a church on top of this sacred temple.
It is still a functioning church, with services open to the public on Sunday. You can visit the museum side of the building, complete with two inner Inca temples, which I highly recommend. It’s the best example in Cusco of the modern harmony that Peruvians have made with their Inca and colonial past.
The museum is open 9:30-5:00. Holidays it is open 2pm-5pm. Tickets are s/15 for adults and s/8 for students with valid ID. Children 10 and under are free.