Also known as the Museo de los Orígines, this interesting museum sits on the site where San Isidro Labrador and his wife, Santa María de la Cabeza, were said to have lived in the 12th century. The humble farm laborer became the patron saint of Madrid, which celebrates him with processions and bullfights during its main fiesta in May. Legend says that their son fell into a deep well and was rescued by their prayers when the waters rose—the first of a number of miracles. The pozo de los milagros (well of miracles) is the museum’s star exhibit. This free municipal museum also deals with the secular history of Madrid from the arrival of the first humans who hunted along the Río Manzanares some 350,000 years ago through Madrid’s apotheosis as Spain’s capital. Most exhibits have English translations.