This location has been flagged as "Closed". The Pop-Up Neighborhood: Boulder 1109 Walnut St., 80302 303-442-4924 Website advertisement Related Articles Concerts The Pop-Up, Boulder’s Newest Nightclub, Opens Tonight By Westword Staff advertisement Trending Restaurants Five places for Filipino food in Denver By Hannah Mask Transportation City launches $5 downtown parking By Thomas Mitchell Critic's Notebook These are the best summer music festivals announced so far By Emily Ferguson Denver Life Free Things to Do in Denver By Patricia Calhoun