NYPL Time Traveller
The goal of the Photographic Views of New York City collection was "to document the changing face of New York City" structures and buildings. Now you can see 1870s to 1970s NYC for yourself as you travel through the city, by connecting to us through Foursquare.
After connecting your Foursquare account to our app, just go about your day and as you check into each venue, we'll tell you if you're close to a historical NYC photograph. If you are, we'll show you in your check-in!
Project created at the NYPL Historical Geolocation Hackathon by Jeff Larson, Mike Tigas, Sisi Wei and Ashley Williams. See the Github repo. Huge thanks to Dan Vanderkam's geocoding work on all of these images.