Monteriggioni is the Sienese door of the Val d'Elsa, the Republic wanted this city as protection of the Francigena.
When you enter the door Romea or Franca it's like going back in old times.

It is like to be in the real Middle Ages, that you can see along via Maggio, in the widening of piazza Roma, during the visit to the Virtual Museum and to the Parrocchiale dell'Assunta, with its austere linearity.

To find the origins, you can go toward Abbadia Isola, the powerful abbey and the walled town.