Louisville, KY: then and now

4 real landmarks in Louisville, each with an old photo you can fade into today's view. Find four landmarks around Louisville. At each one, check in to earn its badge, unlock its story, and collect a Time Card. Do them in any order. Everything stays on this phone.

• Churchill DownsThe racetrack with two spires that crowns the Kentucky Derby winner in roses.
• Seelbach HotelA hotel with nine U.S. presidents on its guest list and a spot in a famous novel.
• Louisville Union StationA castle-style train station that once handled 58 trains a day.
• Louisville Water TowerA pumping-station tower dressed up like a Greek temple, and the tornado that stripped its statues.

Written from sources; not yet walked on site unless a stop says otherwise.