From Termini Station, take a Metro A (direction Battistini) and get off at Barberini(2 stops). Take a exit: Via Barberini / Piazza Barberini. On the square, you will find a pharmacy on the corner. It is the beginning of the 'Via delle Quattro fontane' ,turn left and walk the climb up to 150 meters Palazzo Barberini. Cross the street and you are there, number 156. We don't have sign. Please, ring the intercom.