Museo Regional de los Pueblos de Morelos
On the southeast side of Plaza de Armas, you'll find this fascinating museum that reopened following a massive renovation that was needed after the building was badly damaged in the major earthquake that struck the region in 2017. Prior to that, the building was named Museo Regional Cuauhnáhuac, but it's also known as the Palacio de Cortés. The fortresslike building was constructed as a stronghold for Hernán Cortés in 1522, as the region had not been completely conquered at that time. His palace sits atop the ruins of Aztec buildings, some of which have been partially excavated. There are plenty of stone carvings from the area on display among the 19 exhibit galleries, with a highlight being the murals Diego Rivera painted between 1927 and 1930 on the second floor, depicting the history of Morelos.