The 2011 remodel of this 11,000-square-foot nightclub added burgundy velvet-esque booths and a new sound and light system; patrons can also still stop by its five bars or upstairs Bridge room. Vodka-based cocktails, beer and shots are popular beverage picks; although the club offers some open seating, bottle service is also available for $200-$500. From Friday and Saturday, late-night-loving 20- and 30-somethings groove to DJ-spun top 40 tunes. Monday nights focus on authentic Chicago house music. The cover will cost you from $5-$20--but only if you can find the front door. Forget about entering through the neighboring Wicker Park Tavern; Ohm's entrance is in the rear alley.