FROM THE WEST From the Massachusetts Turnpike (Mass Pike) (I-90) East, follow the signs toward "90 East/Boston/Logan Airport" through the Allston toll booths towards downtown Boston and the end of the Mass Pike. After emerging from the Prudential Tunnel, take Exit 24B for I-93 North and go 1.1 miles. 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.