When you think of "Vegas cocktail lounge," do red leather booths, fireplaces, and a juke box come to mind? If so, plan a visit to The Griffin in the Fremont East District. The Griffin combines aspects of both Old and New Vegas, attracting a crowd usually described as "hipster."
The Griffin is the anti-Strip, the kind of place with no cover and no bottle service that Las Vegas locals adore and that many tourists are thrilled to find. Expect to find moderate drink prices, indie music on the juke box, and a décor that might be described as "dingy chic."
The Fremont East District is busiest during First Friday, the Arts District's monthly street festival that livens up the entire downtown area. You may encounter a crowd at that time, but you're unlikely to during the rest of the month.