Tobu Railway's massive network extends through Tokyo as well as four surrounding prefectures: Chiba, Saitama, Tochigi, and Gunma. With 463.3 kilometers of operating track, Tobu is Kanto's largest private railway and is used by commuters, students, business travelers, and tourists. Tobu Railways is one of many companies that is part of the Tobu Group, which also operates health clubs, golf courses, theme parks, and hotels. These include Tobu World Square, where the world's most famous structures are re-created at 1:25 scale; the Courtyard Marriott Ginza Tobu Hotel and the Tobu Hotel Levant Tokyo, operated in partnership with the Marriott Group. The Tobu Group also develops and manages condominiums, housing developments, department stores, and various other properties along its railways and in Tokyo as well.