La Merced is one of Cusco’s three great colonial churches, standing two blocks from the Plaza de Armas on Calle Mantas, built by the Mercedarian order after the Spanish conquest and rebuilt following the 1650 earthquake that leveled much of the city.
Visitors enter through a carved stone portal into a nave lined with gilded altarpieces and oil paintings depicting the life of Saint Peter Nolasco, founder of the Mercedarian order. The adjoining monastery holds a quiet cloister with a stone fountain and arcaded galleries covered in faded frescoes. The treasury room houses the church’s most famous object: a monstrance encrusted with pearls, diamonds, and a massive emerald, reportedly among the heaviest gold-and-gem pieces in South America. Side chapels contain the tombs of conquistadors Diego de Almagro and his son, linking the building directly to Cusco’s turbulent 16th-century history.
Visitor Highlights & Practical Info
Arrive in the morning, shortly after opening, to see the treasury and cloister without crowds that build around midday tour groups. A small admission fee covers both church and monastery museum; cameras are typically restricted inside the treasury. The site sits an easy walk from the Plaza de Armas, San Blas, and the Museo Inka, making it simple to combine with a half-day loop through Cusco’s historic core. Modest dress is expected, and mass schedules take priority over museum visiting hours, so check posted times before planning around a specific chapel or altarpiece.
