I've been to archives of erotic history in Paris and Amsterdam, but I've never seen a collection as vast (17k sf!!!) as the one at the Erotic Heritage Museum here in Las Vegas. The staff is super friendly and we were able to get a tour so we heard about where some of the collection came from, which I found fascinating.
I'll say that while the collection isn't definitely any one thing, it's open to sexuality in a way that if you aren't comfortable with yourself or the people you are with, it might not be for you. If you are comfortable in your own skin, you'll absolutely, positively find something here that will fascinate you.