THE MILLENIUM HILTON HOTEL Complete Building Restoration following the World Trade Center attack 55 Church Street, New York, NY Project Cost: $28.4 Million The 56-story Millenium Hilton, extensively damaged by the collapse of the World Trade Center directly across the street, was re-opened after a complete restoration. The entire building was restored, including the plaza, façade, building infrastructure, public spaces, restaurants, conference center, pool & recreation facilities, and all 561 guest rooms.