Chicago
Stardust
Stardust is on Clark Street in River North and runs late: 4am most nights, 5am on weekends. It operates as a cabaret bar with DJs and live shows and can handle private events for up to 200 guests. It's not the kind of place for a quiet evening, which isn't what it's offering.
The late hours are the main draw for people coming from other bars, and the programming keeps it from being purely a last-resort destination. If you want to still be out at 3am in River North with something to look at, this is the option.