Marino is an Italian city and comune in Lazio, on the Alban Hills, Italy, 21 km south east of Rome, with a population of 37,684 and a territory of 26.10 km2. It is bounded by other communes, Castel Gandolfo, Albano Laziale, Rocca di Papa, Grottaferrata, and Ciampino. Marino is famous for its white wine, and for its Grape Festival, which has been celebrated since 1924.
- Basilic of San Barnaba (17th century). It is in Baroque style, with a 1653 imposing façade. The interior is on the Latin cross with a nave and two aisles. Among the other artworks, it houses the Martyr of St. Bartholomew by Guercino and a bust of St. Anthony the Abbot by Ercole Ferrata.
- Church of the Santissima Trinità (1640). It houses a Mystery of the Holy Trinity, now recognized as from a pupil of Guido Reni.
- Santa Maria delle Grazie. It has a single nave with side chapels. It is home to a painting of St. Roch attributed to Domenichino and, in a niche at the high altar, a fresco attributed to Benozzo Gozzoli (15th century).
- Chiesa del SS. Rosario (1713), a noteworthy example of Rococo art.
- Palazzo Colonna (16th century).
- Fontana dei Mori, depicting prisoners from the aforementioned Battle of Lepanto.
- Mithraeum, with an important fresco (2nd century AD) portraying the God Mithra slaughtering the bull.