There are many important churches in Milan besides its famous Duomo, including the Chiesa di San Maurizio al Monastero Maggiore, also known as Chiesa di Milano. As the name suggests, it was once associated with a major convent, but that building is now used as Milan's archaeological museum. The church is still used as a house of worship, as well as a venue for concerts.
The church of Saint Maurice al Monastero Maggiore (in English) was built in the early 1500s, and it contains what is believed to be the oldest pipe organ in Milan. The organ was built in 1554 and has been unused for many years, so a new effort is underway to restore the organ to working order. There are also frescoes on the walls that date back to the 16th century, including a series that covers the life of the saint for whom the church is named – San Maurizio.