Like Las Vegas, the white-hot appeal of this Downtown attraction comes from light itself. Originally a “neon boneyard” for Vegas’ decommissioned casino signs, the Neon Museum has evolved into one of the city’s star attractions. It’s a sort of three-dimensional mixtape, compiling decades of Vegas iconography into something educational and entertaining. 770 Las Vegas Blvd. N., 702-387-6366.
Runner-up: The Mob Museum