The Palais du Peuple is the seat of the DRC's parliament, housing both the National Assembly and the Senate in a large complex built with Chinese assistance in the late 1970s during the Mobutu era. The architecture is the confident, slightly heavy style of state buildings from that period -- built to impress, and on a city scale that matches Mobutu's ambitions for his renamed country of Zaïre.
Access to the interior is restricted, but the building's exterior and the plaza surrounding it are worth seeing as an example of the monumental architecture that African socialist states built during the Cold War years. The complex sits in an area where several other government buildings cluster, giving this part of Kinshasa a deliberately official character. Go with a driver and keep a low profile around the compound -- photography near government buildings can attract unwanted attention.