I saved going to this church for Sunday Mass, and it was a great decision. Basilica di Santa Maria Ausiliatrice (Our Lady, Help of Christians) was founded in the 1800s by Saint John Bosco.

This basilica is magnificent. It is built on the site of the martyrdom of early saints Adventer Solutor and Octavious. The church contains their relics and those of many other saints, although I'm not quite sure where all of the relics are.
Three saints from the 1800s are buried here, including Dominic Savio, who died young. He was one of Don Bosco's students, and after he died, Don Bosco wrote a biography of him.
Naturally, St. John Bosco is also buried here:
And also, St. Maria Mazzarello, who worked with Don Bosco to found the Institute of the Daughters of Mary, Help of Christians, is buried here.
Mass was largely in Italian, but it was Mass, so I could mostly follow along. I could sing along with the parts in Latin (Agnus Dei) and the Kyrie. I even understood quite a bit of one of the readings, although I was pretty lost on another one. Parts of the homily made sense, but certainly not all of it. Still, it was a beautiful Mass, and I was happy to get to participate.