Boston City Hall is the seat of city government of Boston, Massachusetts. It includes the offices of the mayor of Boston and the Boston City Council. The current hall was built in 1968 to assume the functions of the Old City Hall. It is a controversial and prominent example of Brutalist architecture, part of the modernist movement. It was designed by the architecture firms Kallmann McKinnell & Knowles and Campbell, Aldrich & Nulty, with LeMessurier Consultants as engineers. Together with the surrounding plaza, City Hall is part of the Government Center complex. This project constituted a major urban redesign effort in the 1960s, as Boston demolished an area of substandard housing and businesses. The building has been subject to widespread public condemnation, and is sometimes called one of the world's ugliest buildings. Calls for the structure to be demolished have been regularly made even before construction was finished. Architects and critics considered it to be excellent work, with one poll finding that professional architects describe Boston City Hall as one of the ten proudest achievements of American architecture. Design Boston City Hall was designed by Gerhard Kallmann, a Columbia University professor, and Michael McKinnell, a Columbia graduate student, (who co-founded Kallmann McKinnell & Knowles). In 1962 they won an international, two-stage design competition for the building. Their design, selected from 256 entries by a jury of prominent architects and businessmen, departed from the more conventional designs of most of the other entries (typified by pure geometrical forms clad with sleek curtain walls) to introduce an articulated structure that expressed the internal functions of the buildings in rugged, cantilevered concrete forms. While hovering over the broad brick plaza, the City Hall was designed to create an open and accessible place for the city's government, with the most heavily used public activities all located on the lower levels directly connected to the plaza. The major civic spaces, including the Council chamber, library, and Mayor's office, were one level up, and the administrative offices were housed above these, behind the repetitive brackets of the top floors. At a time when monumentality was typically considered an appropriate attribute for governmental architecture, the architects sought to create a bold statement of modern civic democracy, placed within the historic city of Boston. While the architects looked to precedents by Le Corbusier, especially the monastery of Sainte Marie de La Tourette, with its cantilevered upper floors, exposed