My wife and I did Big Bus Tours in San Francisco recently, which was great, but the one we did today in Vegas didn't remotely compare. Rather than learning about Las Vegas, all we got was the tour guide pointing out casinos and other buildings, and having side conversations with passengers, when he wasn't practically yelling into the microphone. We've never had a tour guide tell us so little about the city we were touring. We were extremely disappointed that we spent the amount of money on this tour that we did.