Basilica of San Marco Evangelista al Campidoglio

Attached to the Palazzo Venezia at the foot of the Capitoline, this basilica is among the oldest churches in Rome, founded in the fourth century and rebuilt several times. A ninth-century apse mosaic depicting Christ with saints survives above the altar, glowing against the later Baroque and Renaissance additions. A graceful loggia and portico face a small square, and a gilded coffered ceiling covers the nave. Dedicated to the evangelist Mark, it long served the Venetian community around the palace.