Where can I get free booklets and leaflets about Las Vegas?

Basically, I want lots of free leaflets, posters, brochures, booklets about Las Vegas but I don't know how to obtain them. I live in London, England and I'm a big fan of Las Vegas. Is it possible to get physical information like that sent to my address? I'm seventeen years old and I might give myself a personal project in the summer to create like a scrapbook or something that displays the information. My reason for doing it is so that I have some sort of portfolio that I can use to apply for universities or jobs. I'm considering being a graphic designer as a career so this might be helpful. Can I apply for brochures online to be sent to me for free? Any advice? Thanks.