Architect: Johan Otto von Spreckelsen
Date Constructed: 1985 – 1989
Grand Arch, La Defence, a great national design competition was launched in 1982 as the initiative of French president François Mitterrand. Danish architect Johann Otto von Spreckelsen (1929–1987) and Danish engineer Erik Reitzel designed the winning entry to be a late-20th-century version of the Arc de Triomphe: a monument to humanity and humanitarian ideals rather than military victories. The construction of the monument began in 1985. Spreckelsen resigned in July 1986 and ratified the transfer of all his architectural responsibilities to his associate, French architect Paul Andreu. Reitzel continued his work until the monument was completed in 1989. The two sides of the Grand Arch house government offices.
The Grand Arch is in the approximate shape of a cube (width: 110m, height: 110m, depth: 110m); it has been suggested that the structure looks like a hypercube (a tesseract) projected onto the three-dimensional world. It has a prestressed concrete frame covered with glass and Carrara marble from Italy. It was built by the French civil engineering company ‘Bouygues’.
The Grand Arch was inaugurated in July 1989, it completed the line of monuments that form the Axe Historique running through Paris. The Arche is turned at an angle of 6.33° about the vertical axis. The reason for this turn was technical: with a métro station, an RER station, and a motorway all situated directly underneath the Arche, the angle was the only way to accommodate the structure’s giant foundations. In addition, from an architectural point of view, the turn emphasizes the depth of the monument and is similar to the turn of the Louvre at the other end of the Axe Historique. In addition, the Arch is placed so that it forms a secondary axe (axis) with the two highest buildings in Paris, the Tour Eiffel and the Tour Montparnasse.