Houston, TX: then and now

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

• The Rice (Rice Hotel)A hotel built on the spot where Texas once had its capitol.
• Market SquareA park where four different city halls and markets used to stand.
• Union StationA grand 1911 train station that now sits inside a baseball park.
• Cotton Exchange BuildingA red-brick building where cotton prices were decided.

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