This 5th century church is dedicated to Cecilia, the patron saint of Music. The church is lined with beautiful frescoes and late Renaissance architecture. One of the major highlights inside is the sculpture of St. Cecilia by the late-Renaissance sculptor Stefano Maderno. This sculpture seeeks to emulate the dead body of the saint. It also includes Pietro Cavallini's beautiful fresco in the nun's choir. You can also visit the excavations of the ancient Roman homes that are underway nearby.