5th Annual Halfway to Halloween returns to Marquee Nightclub on Monday, June 10th with sounds by VICE! Doors open at 10:30PM. All sales are final. No refunds. 21+ with valid photo ID. The Cosmopolitan has established a few simple guidelines to ensure the safety of guests and CoStars during costume contest weekends. Prohibited items include, but are not limited to: - Masks or full face paint - Simulated weapons (e.g., knives, swords, guns, handcuffs) - Roller skates/blades and skateboards - Certain sports equipment (e.g., hockey sticks, baseball bats, tennis rackets) - Large bags or briefcases - Costumes which may be racially, culturally or politically offensive - Costumes overtly sexual in nature, including nudity, pasties or body paint - Costumes realistically imitating law enforcement officers, EMS or military personnel More than 60,000 square feet, a rooftop patio overlooking the lights of Las Vegas, an ultra pool-club and the best DJs from around the world. Marquee Nightclub & Dayclub secures top international house music DJs as residents, and if one's taste is not in house music, Marquee also offers the 'Boom Box' as a mixed-format area, and 'The Library', a discreet VIP hideaway. With vast glass window-walls overlooking the famous Las Vegas Strip, guests will enjoy a nightlife experience, unlike any other venue.