In the medieval period people who traveled from northern Italy to Rome needed stops along the way where they could sleep and get something to eat. A route called Francigena (or Pilgrim Path) was developed that people could travel with rest stops every few miles for food, water and a bed.
This is a walled medieval town on the Pilgrim Path that was built 1100-1300.
The town had a high rock wall, 2 gates and 14 towers. The soldiers who lived here were guarding the route to Siena.