Look closely and you'll notice the Cruise Room Bar, inside the historic Oxford Hotel, is shaped like a wine bottle. It's actually a replica of one of the lounges on the original Queen Mary ocean-liner and has a history that dates back to Denver's early days. It "officially" opened the day prohibition ended, but ask the staff about the secret paneling and underground tunnels if you're interested in learning its moonshine history. Today the bar is famous for its martinis, of which there are more than a dozen to choose, served in oversized shakers. It's a loungy spot to just sit back, sip your old-school cocktail and listen to big bands and the crooners of the 1940s and '50s. Because the Cruise Room seats only about 60 guests, it's a good idea to arrive early as it often fills quickly.