The entire day was spent walking around London. Some of the important places that were visited were St. Pauls Cathedral, the London and Tower Bridge, as well as Burroughs market. The tour through the engine room involved with raising and lowering the Tower Bridge brought insight into how such a magnificent mechanical procedure operated before it was modernized with electricity. Another marvel was the Tower of London, which was a fortress. Seeing and reading how different kings or invaders would take over the keep and improve it was very interesting to learn.