Baltimore, MD: then and now

4 real landmarks in Baltimore, each with an old photo you can fade into today's view. Find four landmarks around Baltimore. 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.

• Mount Clare StationWhere America's first regular passenger railroad service began in 1830.
• Washington MonumentA tall stone column honoring Washington, started years before the one in D.C.
• Fort McHenryThe fort whose flag inspired the national anthem.
• George Peabody LibraryA library so grand that people call it a cathedral of books.

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