Ceausescu was assassinated on December 25 , 1989 amid an uprising against his communist regime . The building , she says , is the world 's third largest by volume after the Aztec pyramid of Teotihuacan and the Cape Canaveral rocket assembly hangar . The former dictator 's Parliamentary Palace is said to be the world 's third largest building by volume . Today the building houses Romania 's Senate and Chamber of Deputies , but 90 % still stands empty .
Ceausescu was assassinated on December 25 , 1989 amid an uprising against his communist regime . The former dictator 's Parliamentary Palace is said to be the world 's third largest building by volume . Today the building houses Romania 's Senate and Chamber of Deputies , but 90 % still stands empty .