The French parliament's lower house, the Chamber of Deputies, meets at this 1722 mansion built by the duchesse de Bourbon, a daughter of Louis XIV. You can make reservations for one of two types of visits as early as 6 months in advance. Hour-long tours on art, architecture, and basic French government processes are given Monday, Friday, and Saturday. They're in French (in English with advance booking). You may also observe sessions of the National Assembly, held Tuesday afternoon and all day Wednesday and Thursday beginning at 9:30am. Remember, this is a working government building, and all visitors are subject to rigorous security checks.