Built by the New York Central between 1929 and 1934 as way to move trains through Manhattan’s West Side above the streets of the city, the High Line would serve the city well and even earned the nickname of the “Lifeline of New York” due to the amount of freight it carried into the city. As traffic declined, the last train would roll over its rails in 1980. Mother Nature would then take over and start to reclaim the elevated structure and tracks as they fell into a state of disarray. In 1999, a nonprofit group organized to save the tracks and turn them into a public open space. With help from the City and tens of thousands of people, a unique park was born and finally opened in 2009. In less than a year after opening to the public, the park had seen two-millionth visitors walk its trail. For more information click here.