FROM THE SOUTH From I-93 North, take Exit 23 toward "Gov't Ctr." and bear left as you come above ground. Go straight at the first light (Surface Road). Continue straight at the second light (Clinton Street). Boston City Hall will be in front of you and Faneuil Hall will be on your left. Turn left at the third light onto Congress Street. Go straight at the lights at State Street, Milk Street, and Water Street. Immediately after Water Street, turn left into the underground Garage at Post Office Square. Our building is at Ten Post Office Square on the corner of Pearl and Milk Streets. We are on the 5th floor.