If you like live theater productions, book yourself some tickets for a play or other stage show at Stages Repertory Theatre. Look online to see what's still available.
This arts and culture attraction in Montrose is popular with travelers, so make sure it features on your schedule. Don't think the sightseeing ends there, however. There are many more places waiting for you to explore after Stages Repertory Theatre. Toyota Center, Minute Maid Park, and Houston Zoo are not far away.