Can you say free, clean, transportation in Vegas? You can if you take the CityCenter Tram. I always get on in Monte Carlo (not easy to find but worth it) and take it all the way to the end. Then, I do my casino hopping by getting on and off the tram as needed. I make a full day of it. The tram is AIR CONDITIONED (so needed in Vegas). It's super super clean, has some funky music going on, and it hits a ton of casinos. It starts (for me) at Monte Carlo and goes all the way to Bellagio. That doesn't seem like a long way until you actually start walking the Vegas strip when it's 112 degrees.