Interior of Iglesia Sobre Piramide (Iglesia de Nuestra Señora de los Remediosa) rests on top of an old pyramid. There was a wedding procession underway. When Cortés and his men arrived in Cholula in October 1519, some 1,800 years after the pyramid was built, they massacred around three thousand people in a single hour, 10% of the city's entire population, and leveled many of the its religious structures. But they never touched the pyramid, because they never found it. In 1594, after establishing himself in the city and affirming it is his, a church was built: The Church of Our Lady of the Remedies, on the top of the mountain of the hidden pyramid. Now Cholula has 365 churches - not true by a long shot. MiPad Pro to you. To reach it, you have to climb some 850 feet. Its dome is covered with colorful clay Talavera tiles, and it still contains elements of pre-Hispanic cosmology