The Bar/Lounge at The Westin Denver International Airport
The Westin Denver International Airport's bar/lounge is acknowledged by professional travelers. Of the 3 reviews that we monitored, 2 referenced the bar/lounge, like Gayot and Fodor's.
The Westin Denver International Airport 
Gayot
Fodor's
Gayot "A range of dining choices includes Grill & Vine’s American farm-to-table fare, Ingredients for coffee and snacks, and the Sky Lounge for cocktails and light bites"
Fodor's "The lobby sits on the 6th floor and features a cocktail lounge and spectacular panoramic views of the Rockies from Pikes Peak to Mount Evans on one side, and looks out over the rail station on the other"
