The Foshay Museum and Observation Deck is at the top of the Foshay Tower in Downtown Minneapolis, which was added to the National Register of Historic Places in 1978. The museum is on the 30th floor whereas the observation deck is on the 31st floor of this 32-floor building. It was the tallest building in the Midwest for 48 years. From the observation deck, it's a great place to have a spectacular view of the city. As for the museum, it is filled with knowledge about the Foshay Tower and its colorful past. You can learn about how Wilbur Foshay had it built in 1929 as a tribute to the Washington Monument and then couldn't pay his debts surrounding the Foshay Tower--including to John Philip Sousa.