 The One Pillar Pagoda, the Lycée du Protectorat and the Ho Chi Minh Mausoleum are also in Ba Dinh.South of Hoàn Kiếm's "French Quarter" has several French-Colonial landmarks, including the Hanoi Opera House, the Sofitel Legend Metropole Hanoi hotel, the National Museum of Vietnamese History (formerly the École française d'Extrême-Orient), and the St. Joseph's Cathedral.Most of the French-Colonial buildings in Hoan Kiem are now used as foreign embassies.