Headquarters of the French Communist Party, built by Oscar Niemeyer in 1965-1971 (dome and outside terrace from 1980). The main building stands atop 5 pillars and appears to be floating above the ground level. Underground part of the dome, which contains a conference room for 250 people. Entrance of the dome. Inside the dome. Thousands of small plates are set on the ceiling to diffuse light and sound. Dome. Dome. Dome. Underground level. Underground level. Underground level. Meeting room. Meeting room. Waiting area. Rooftop terrace. Rooftop terrace. Rooftop terrace. Park Buttes-Chaumontle104 Labels