Bonus Secret: The Park Avenue Bridge
Park Avenue is not bound by Manhattan alone. In fact, Park Avenue extends its reach into the Bronx via the Park Avenue Bridge. The Park Avenue Bridge carries the Metro-North Railroad across the Harlem River and is a remnant from the New York and Harlem Railroad built in 1841. In the Bronx, Park Avenue runs sporadically between the Major Deegan Expressway and Fordham Road.
Next, read our series on the history of New York City streets.