Are you ready for a closeup? Try your hand at re-creating these historic photos at Union Square!

This challenge is only available to our iOS app users. If you don't yet have the Urban Archive App, download it here.

Each location in this challenge has an address and a historic image tied to it. Check-in at each location by tapping the lock icon to the left of the clue. If you’re in the right place, it will turn green.

Your challenge today is to take as many then-and-now photos as you can. Tap the image, and then the recreate button to line up the historical image with your present-day view. Once you’re happy with your photo, hit save to add it to your camera roll.

Please share these photos with team@urbanarchive.nyc once you’ve completed the challenge. Happy snapping!