Introduction to the December Revolution Monument: The December Revolution Monument was built 10 years later, in 1999, on the Revolution Square to commemorate Romania's "December 22, 1989 Revolution." The top of the monument resembles a bird's nest. The building on the left is the Party Central Office Building during Ceausescu's time. At noon on December 22, 1989, Ceausescu boarded a helicopter from the roof of this building to escape the scene. .