One Liberty Observation Deck is owned by the Montparnasse 56 Group, an organization specializing in the operation and development of tourist sites that have a little altitude. In fact, M56 is one of the world’s only companies that specialize in the management of observation decks. These sites include the 56th floor and panoramic terrace of the Montparnasse Tower in Paris (France), the Berlin TV Tower (Germany), 360 Chicago Observatory, and now One Liberty Observation Deck (Philadelphia). Additionally, M56 is one of the leading independent operators of tourist attractions in Europe, managing Crocodile Zoo and Nature Preserve in the south of France.