From Milan:

• Leave the Highway A1(E35) at Firenze-Impruneta Exit, enter the road-link Siena-Firenze (RA3) and leave it at Siena-Ovest Exit.
• Follow the directions to Porta San Marco/Duomo/Questura.
• Pass Porta San Marco, turn right into Via delle Sperandie, continue until the end, turn left into Pian de ' Mantellini and continue until number 26.

From Rome:

• Leave the Highway A1 (E35) at Valdichiana Exit, follow the directions to Siena and revenue on road Siena-Bettolle (E78-SS 73).
• Continue until the Tangenziale Ovest (the end of the Road-link Siena-Firenze RA3) and leave it at Siena-Ovest Exit.
• Follow the directions to
  Porta San Marco/Duomo/Questura
• Pass Porta San Marco, turn right into Via delle Sperandie, continue until the end, turn left into Pian de ' Mantellini and continue until number 26.

GPS Coordinates:

• N 43° 18’ 53”; E 11° 19’ 37”