Martini Park--a cocktail lounge from the owners of New York's Marquee and Light, which is also at the Bellagio in Vegas--sports a slightly corporate feel thanks to the large logos outside. But, inside takes on a carefree party vibe that circulates around the three bars, one of which is directly in front of a stage for nightly live musical performances. A River North professional crowd and more mature bargoers (expect a crowd in its 30s and 40s) munch on comfort food small plates like filet mignon sliders and mac 'n' cheese sticks, and imbibe signature martinis like the Cucumber and Pop Star. In warm weather months, the Park opens up prime patio seating on the bustling corner of Erie and LaSalle Streets.