The St. Louis Public Schools tour continues! Mark Twain School was built in 1912 by William B. Ittner, and was named after a man who wasn’t named Mark Twain. It was a very moist school–lots of water leaking in, which turned the boiler room into an indoor pool–and had a really neat top-floor library/auditorium. It also had a secret passageway that I couldn’t get to because I didn’t have a ladder handy.