What would happen if you took the best bits of classic Las Vegas entertainment from the last 70 years or so and put it in one package? That’s the basic question behind this loving look back at the ghosts of the Sin City stages, and the answer is this: It would be a heck of a lot of fun. A gateway to the days of Vegas past, with beautiful showgirls in skimpy costumes and big headdresses; headliners like the Rat Pack and Elvis; variety acts (tap dancing! magic!); dancing; singing; even Elton John and implosions. The show plays like a history channel special done by Busby Berkeley. The singing and dancing are among the best you’ll find in Vegas, which may very well make you long for the days before those French Canadian acrobats took over the showrooms. Shows are nightly at 7 and 9pm.