Boston, MA: then and now

4 real landmarks in Boston, each with an old photo you can fade into today's view. Find four stops on the Freedom Trail, a 2.5-mile walk through old Boston. 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.

• Old State HouseA 1713 brick building, now surrounded by skyscrapers.
• Faneuil HallA market hall with a golden grasshopper on top.
• Paul Revere HouseDowntown Boston's oldest surviving house.
• Old North ChurchThe steeple where the lanterns hung.

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