At the gravitational center of Manhattan stands the Empire State Building, built in 1931 to be the tallest structure in the world and retaining that title for forty years. While other buildings may scrape higher skies, few can capture the imagination as does this towering symbol of our favorite metropolis. A few fun facts: a virtual tour of New York City, Skyride, is available inside, as is a trip to the celestial observation deck. After the tragic fall of the World Trade Centers, the Empire State Building was again, briefly, the tallest building in New York before recently being surpassed by the Freedom Tower - One World Trade Center. It is, however, currently the tallest LEED-certified (Leadership in Energy & Environmental Design) building in the United States, to which we tip our hats.