Palace of the People.
"The Palace of Parliament (Romanian: Palatul Parlamentului) in Bucharest, Romania is a multi-purpose building containing both chambers of the Romanian Parliament. According to the World Records Academy, the Palace is the world's largest civilian building with an administrative function, most expensive administrative building and heaviest building.
The Palace was designed by architect Anca Petrescu when she was only 28 years old and nearly completed by the Ceaușescu regime as the seat of political and administrative power. Nicolae Ceaușescu named it the People's House (Casa Poporului), also known in English as the People's Palace." (from Wikipedia)