Countdown to midnight for FREE (and indoors) in downtown Denver at Union Station. The historic station will open its doors to the public on Thursday, December 31 for some serious partying and provides a prime spot to watch the downtown Denver fireworks. In the Great Hall, two of Colorado’s top DJ’s: DJ Desire and DJ G-Funk battle it out with their signature mixes and hottest jams starting at 9 p.m. At 11:30 p.m., you and the fellow party-goers will determine who will be leading the party into 2016. Looking for a more intimate feel? Head down to Terminal Bar’s Gallery located in the basement for some FREE hot jazz provided by Gypsy Swing Style Quartet. Or you can spend some dough and settle in to Cooper Lounge (reservations recommended) for some high-end cocktails. Do be prepared for the crowds. 1701 Wynkoop St., Denver.