You can find Borgin and Burkes at 13B in Knockturn Alley at the new Wizarding World of Harry Potter Diagon Alley. It sells objects of Dark magic and other dangerous magical artifacts, including many souvenirs exclusive to this one-of-a-kind shop in Knockturn Alley. You may also see wanted posters for Bellatrix Lestrange, the Hand of Glory, part of the Floo Network where Harry accidentally entered the wizarding world, and the Malfoy vanishing cabinet.
You don’t have to be a Death Eater to gain entry to this infamous shop. As you wedge your way through the fascinating, eclectic collection of Dark Arts objects, you may find Death Eater masks, skulls, and costume replicas. The shop also sells apparel, accessories, jewelry, collectibles, and gifts.
To get to Borgin and Burkes, follow the signs to Knockturn Alley, searching for the entrance in the picture, above. It’s easy to find, as it’s the largest shop in Knockturn Alley.
I found some really cool Deathly Hallows merchandise in this store, so if you’re a fan, this is the place to get that merchandise.