It was built in 1730, it owes its name to the bicentenary mulberry that is standing in the middle of the patio (moral means mulberry in Spanish language). There is also a map describing the slow discovery of South American by colons. The door in carved wood has been made under a baroque influence, it is monumental, and it is framed by friezes and gargoyles. The pre-Inca and Nazca designs (sun, puma, snakes) attract the curious and visitors.