ProDemos – House for democracy and the rule of law informs citizens about the democratic rule of law and encourages them to play an active role. The ProDemos Visitors’ Centre organises guided tours through the Ridderzaal (Hall of Knights), the Dutch Senate and House of Representatives, as well as city walks through The Hague's political district. A tour consists of an introduction film and visit to a choice from the Hall of Knights, Dutch Senate or House of Representatives. If meetings are under way, it may not be possible to visit some buildings. Booking is recommended.