Transportation in New York City City and Fort Lee, New Jersey, is the world's busiest bridge in terms of vehicular traffic. New York has historically been a pioneer in tunnel construction. Most carry rail lines, but there are four exceptions. The Lincoln Tunnel, which carries 120,000 vehicles per day under the Hudson River between New Jersey and Manhattan, is the world's busiest vehicular tunnel. The Holland Tunnel, also under the Hudson River, was the first mechanically ventilated vehicular tunnel in the world and is considered a National Civil Engineering Landmark by the American Society of Civil Engineers. Two other notable tunnels connect Manhattan to other
Jersey City, New Jersey been headquartered in adjacent Secaucus, opened a new headquarters including a 600,000-square-foot warehouse and distribution center in Jersey City in April 2015. In 2014, Paul Fireman proposed a 95-story tower for Jersey City that would include a casino. The project, which endorsed by Mayor Steve Fulop, would cost an estimated $4.6 billion. In February 2014, New Jersey State Senate President Stephen Sweeney argued that Jersey City, among other distressed cities, could benefit from a casino—were construction of one outside of Atlantic City eventually permitted by New Jersey. The Jersey City Free Public Library has five regional branches, some of which