The Prudential Tower, also called the Prudential Building or The Pru, is a skyscraper in Boston, Massachusetts. The building is the 2nd-tallest building in Boston. It was designed by Charles Luckman and Associates for Prudential Insurance and was completed in 1964. It is tall and has 52 floors. With its radio mast, the tower is and is the tallest building in Boston. It has an observation deck, called the "Prudential Skywalk", on its 50th floor. It is currently the highest observation deck in New England that is open to the public. The building also has a restaurant on the 52nd floor, called "Top of the Hub."