Sunshine City is a notable landmark in Ikebukuro. It is a multi-building complex of business and leisure facilities, with features including one of Tokyo's highest office buildings, the Convention Center Tokyo, a Prince Hotel, a range of retail and restaurant operations, clinics, an aquarium and a museum, a theater, and gym facilities. The Sunshine 60 office building offers a full-circle panorama of Tokyo City from the observation deck at its top level. Ikebukuro station, with its eight railway and subway lines, is the world's second-busiest behind Shinjuku.