A short flight of stairs opposite the Santuario di San Michele leads to a 12th-century baptistry with a deep sunken basin for total immersion. You enter the baptistry through the facade of the Chiesa di San Pietro with its intricate rose window squirming with serpents – all that remains of the church, destroyed in a 19th-century earthquake. The Romanesque portal of the adjacent 11th-century Chiesa di Santa Maria Maggiore has some fine bas-reliefs.
