Incredible before-and-after photos show how much New York City has changed since the 1800s

There's a new map that will help you chart exactly how much Manhattan has changed over the years.

This week, the New York Public Library released an interactive website that allows users to travel back in time using the Library's historical photography database.

The site, called OldNYC, features a digital map where users can view photos of the island dating as far back as the early 19th century.

There are photos for almost every intersection in the city, so you can see the evolution of historical landmarks and even your own address.