The new Harry Potter theme park, slated to open in the first half of 2023 over an area of approximately 30,000 square meters, will display film sets, costumes and props used by the fantasy films based on the popular novels of the same name by British author J.K. Rowling. It will be the second such facility after Warner Bros. Studio Tour London -- The Making of Harry Potter, which opened in Britain in 2012 and has seen over 1.4 million visitors, according to Seibu Railway Co., which owns Toshimaen.