Amid the many splendors found in the Plaza de Armas, the sky-high La Catedral is one of Cusco's finest architectural displays. Constructed in the 1550s with stones stolen from Sacsayhuamán ...

Among the most enlightening accounts was one written by an anonymous Spanish Jesuit in 1594, who explained that the main tunnel ran beneath the bishop’s houses behind Cusco Cathedral.

The groundbreaking discovery found over a mile of the network of streets, underneath the historic city of Cusco near Machu ... bishop’s house behind Cusco Cathedral, and ended at the citadel ...