You may see Cathedral of San Leo from a distance before you actually find this amazing religious building. Pop inside if it's open or just admire the facade from outside.
This principal church in San Leo is popular with fellow travelers, so leave a spot for it on your schedule. However, your day doesn't end there. There are many more attractions waiting for you to explore after Cathedral of San Leo. Montebello Castle, Fortress of San Leo, and Skypark Parco Avventura are nearby.