I bought combo tickets for the Mob Museum & Neon Museum 1 month in advance.
Ubered from the Strip to Main Street Station Sunday Brunch from 12:30-3:30, then walked to the Mob Museum.
Spent 3 hours in the Mob Museum, but didn't get through all of 1 floor + another whole floor, out of 3. Had to leave to walk to 7:30pm Neon Tour.
Mob Museum was riveting. What a collection of interactive exhibits, artifacts, photos, videos. The broad coverage & the way cities were tied together made me realize the Mob was a lot bigger than I thought. Since the heyday was roughly the 20s - 50s, & I don't watch violent movies, I knew hardly anything when I went in. The organization & presentation was very logical. Never felt that it was disjointed or that I needed to go backward to get a better handle on the flow.
One of the most interesting museums I've been to. I will return.