The MOB Museum is great. Get there early as parking is limited and the museum gets very busy. There is so much to see so plan at least 3 or 4 hours. I had no idea how the MOB got started in the U.S. nor how pervasive it was across the entire U.S. It is fascinating to learn about "the unintended consequences" of Prohibition which actually bred so much crime everywhere. The artifacts are fascinating. We especially like that this historic 1933 neo-classical building has been preserved as the home for this museum. This museum is continuing to grow and in 2018 they plan to have a full "speakeasy" in the basement and much more interactive displays. We will definitely return to learn more every time we are in Vegas. If you are in Washington DC, be sure to visit the Spy Museum - it too is astounding!!!