Another of the four churches built by St. Ambrose in Milan in 382. The church is famous for having the relics of the Apostles under its altar. It was originally the Apostles, then rededicated when the body of St. Nazarus was discovered. See the grey walls of the paleo-Christian masonry under the new white plaster. Check the Trivulzio Chapel, the chapel of Santa Caterina, the small archaeological site to the right of the presbytery, and the inscription written by Ambrose explaining the church's plan. The highlight of the church are the 13th-15th century frescoes, a magnificent series of artwork.

• Buses N24 stop C.so Di P.ta Romana Via Rugabella
• Subway 3 stop Missori
• Buses 65, 94 stop Ospedale Policlinico
• Trams 16 and 24 stop C.so P.ta Romana Via S. Sofia

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