Last week, social-location service Foursquare launched Time Machine — maybe the coolest thing it has ever done with check-ins.

Now Foursquare is taking its users farther back in time than their recent check-ins by making checking in to New York City locations a trip to the past. Foursquare has teamed up New York Public Library to show you incredibly rich historical photographs near your check-ins.

After you connect your Foursquare account with NYPL’s new Time Traveller app, your check-ins in New York will show you photos of buildings and landmarks from the 1870s through the 1970s.

While this new app isn’t nearly as fun as Time Machine, it’s good to see Foursquare doing more to make its experience unique. It also needs more check-in data from users to make its business model work, so perhaps this will encourage more check ins by people like myself who love history and learning about New York.

Photo via Foursquare