Located on the fifth floor, the Hudson center is in the well-known Tribeca neighborhood in Lower Manhattan, home to many famous residents, upscale restaurants and art galleries. Lower Manhattan is the fourth largest business district in the United States and is the main center of business and government in New York City, which is one of the world's financial leaders and home to the New York Stock Exchange, the world's largest stock exchange. Also referred to as Downtown, Lower Manhattan is also home to the world renowned financial district of Wall Street. Perhaps the most infamous landmark is the former World Trade Center, which is once again under significant construction. Several new buildings are planned including the new Freedom Tower. The headquarters of Goldman Sachs, Verizon Communications, Ambac Financial Group and PR Newswire are all nearby.