Palazzo della Camera del Lavoro, Trade union headquarters in Milan, Italy

Palazzo della Camera del Lavoro, formerly Palazzo dei Sindacati dell'Industria, occupies a nearly square 2,000-square-metre lot on Corso di Porta Vittoria, between the Palazzo di Giustizia and Piazza Cinque Giornate. Its U-shaped plan opens onto the street with two four-storey side wings flanking a raised central piazzetta, beneath which lies a large hall built for 2,000 people. A central tower, originally 48 m high, rises behind the piazzetta, reached by two identical symmetrical stairways.

The building was erected between 1930 and 1933 as the headquarters of the Fascist Trade Unions of Industry, following a 1928 competition won by architects Angelo Bordoni, Luigi Caneva and Antonio Carminati. The judging committee was chaired by Arnaldo Mussolini. After 1945 the celebratory Fascist elements were removed and the central tower was raised by one storey.

The two side wings once carried diagonal fasces and two high reliefs designed by Mario Sironi, "La marcia su Roma" and "La carta del Lavoro", carved by Carlo Bertolazzi and Silvio Zaniboni. Both reliefs and the fasces were removed after 1945; a faint trace of the fasces survives in the present decoration. The building is now the seat of Milan's Camera del Lavoro.

The building occupies a nearly square 2,000 sq m lot at Corso di Porta Vittoria 43, between the Palazzo di Giustizia and Piazza Cinque Giornate, with side entrances on Via Dandolo and Via Savaré. The central piazzetta, raised about 1.5 m above street level, is reached by two identical symmetrical stairways leading to the first-floor atrium. As the seat of Milan's Camera del Lavoro, the interior is a working union office, so visits should be arranged in advance.

The central tower was originally 48 metres high; after 1945 it was raised by one storey, which removed the arcades and architectural screens of its terrace. The two lateral wings once carried high reliefs by Carlo Bertolazzi and Silvio Zaniboni depicting the March on Rome and the Charter of Labour, designed by Mario Sironi and taken down after the war.