Second City is the Chicago-based comedy group that spawned not only SCTV but some of the best modern-day comics (such as Gilda Radner, John Belushi, Martin Short, and Mike Myers). This is an improv and sketch-comedy show, with cast members performing stunts similar to those you might have seen on Whose Line Is It Anyway? -- you know, taking suggestions from the audience and creating bizarre little skits and such out of them, all of it done at lightning speed with wit and a wink. Some of it can turn R-rated, so be careful bringing the kids, but do not hesitate to see it yourself. And join in -- any improv group is only as good as the material fed it (so remember, there's only so much a group can do with jokes about sex and vomiting, especially if every single audience thinks that would be funny material with which to work). One of the best values and highest-quality shows in Vegas.