<p>Last week, social-location service Foursquare launched Time Machine maybe the coolest thing it has ever done with check-ins.</p><p>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.</p><p>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.</p><p>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.</p><p><a href="http://venturebeat.com/2013/06/19/foursquare-nypl-historical-photos/">Keep reading...</a></p><p>Read also:</p><p><a href="http://betabeat.com/2013/06/hey-history-nerds-turn-foursquare-into-an-orgy-of-vintage-photos/">Hey History Nerds: Turn Foursquare Into an Orgy of Vintage Photos</a> (Betabeat)</p><p>Explore: <a href="http://news.google.com/news/more?ncl=dCujIBrl4qLHTpMffzBQZHvzm7jvM&ned=us">2 additional articles.</a></p>