People go to Boulogne-Billancourt to see famous monuments such as Arc de Triomphe, as well as to enjoy its many popular attractions like Luxembourg Gardens. Enjoy the city's cafes. Take in some culture at top places like Louvre Museum and Palais Garnier. While here, you may want to make time for other popular sights such as Paris Expo Porte de Versailles and Eiffel Tower.