If you're interested in a little insight into how Las Vegas evolved into the place it is today, this is the place for you. Old time casinos and businesses, neon signs have been given a new home for future generations to see them for years to come.
Literally next door from the AAA baseball Las Vegas 51's, the Neon Museum is a large property with signs, signs and more signs. Make sure to buy tickets in advance on their website to not be disappointed (admission is by invitation only, so it's not open just any time), bring lots of water (one 12 ounce bottle will not likely be enough) and wear a hat... my wife didn't make it through the whole tour as she had forgotten hers. It was 96 degrees the day we went and the tour guide said it can be up to ten degrees warmer inside the compound.
Cameras are allowed, take all the pictures you want... you can even post them to Facebook if you want, you will have to sign a waiver to attest to the fact you acknowledge you won't sell the photos.
The guide even said the collection won't remain stagnant, so if you saw it a while ago, it's worth checking out again as something new will most likely be there to greet you. A nice break from the noise, hustle and bustle.