Everything You Need To Know About The Official Harry Potter Butterbeer Bar Opening Next Month Delish 3 hrs ago Replay Video of ficial opening day of the new Harry Potter store in New York (it's June 3, BTW!), magic fans knew there was going to be so much to look forward to. Though the 21,000 square foot location is already jam-packed with a number of magical and picture-worthy moments, the new attraction is upping the ante by including a bar that serves up—you guessed it—butterbeer. Is that exciting or is that exciting?! While Harry Potterfans have been indulging in the non-alcoholic beverage since 2010, if you haven't had the chance to stop by one of the few places that serve it (like the Warner Bros. Studio Tour London and any of the Universal Parks and Resorts), you will soon be able to make your dreams come true in NYC.