4. There Used to be an Elevated Railway Next to Morningside Park
Photo from Library of Congress
The 9th Avenue elevated line was part of the first elevated railway in Manhattan. A portion of this elevated rail was added in the late 1870s, extending from 104th Street and Columbus Avenue. The line went east on 110th Street, from where the above photo was taken, and north up Eighth Avenue to 125th Street. The curve at 110th Street was the highest ever built and dubbed the “Suicide Curve,” because of the number of people that jumped from there.