When in Quartier Atlantis and the surrounding area, you'll want to check out sights like Le Grand Dôme or Espace Jean Monnet and hop on the metro to see more of the city at Massy-Europe Tram Stop or Massy-Palaiseau RER Station.
While Quartier Massy-Opéra I isn't home to many top sights, Espace Jean Monnet and Le Grand Dôme are some notable places to visit nearby.
While Quartier Vilmorin may not have many sights to explore, venturing just a little farther will lead you to top things to see and do like Le Grand Dôme and Velizy 2 Shopping Center.