This great photographic composition highlights the changes underwent to the New York City skyline in the past 137 years, the Manhattan city-scape is often hailed as having one of the greatest skylines in the world (other candidates include Hong Kong, Chicago and Singapore) and it’s interesting to see how it once looked back in the late 1800′s. From the city’s early immigration days, passing through the era of the Great Depression, then the old World Trade Center twin towers (where the 9/11 memorial is now located) and ending up in 2013 with the new One World Trade Center joining the silhouette of the city and reclaiming its throne as NYC and America’s tallest skyscraper.