"Venues speak to the people that frequent them. The Crystal was built for counterculture. It was on the third floor of the building so the dancers in the '20s had time to 'separate' before the cops could get there. When dancing was illegal they did it at the Crystal."
If you are in that phase of life where sleep comes easy but is somewhat optional, take advantage of it. Stay awake from 19 to 23 because no one tells you that one day you won't feel like yourself for at least a year, possibly two, because you made the mistake of taking a red eye.