The Maison carrée (French pronunciation: [mɛzɔ̃ kaʁe]; French for “square house”) is an ancient Roman temple in Nîmes, southern France; it is one of the best-preserved Roman temples to survive in the territory of the former Roman Empire. It is a mid-sized Augustan provincial temple of the Imperial cult, a caesareum.

The Maison carrée inspired the neoclassical Église de la Madeleine in Paris, St. Marcellinus Church in Rogalin, Poland, and in the United States the Virginia State Capitol, which was designed by Thomas Jefferson, who had a stucco model made of the Maison carrée while he was minister to France in 1785.

In September 2023, the Maison carrée of Nîmes was inscribed on the UNESCO World Heritage List.

History:

In about 4–7 AD, the Maison carrée was dedicated or rededicated to Gaius and Lucius Caesar, grandsons and adopted heirs of Augustus who both died young. The inscription dedicating the temple to Gaius and Lucius was removed in medieval times.

However, a local scholar, Jean-François Séguier, was able to reconstruct the inscription in 1758 from the order and number of the holes on the front frieze and architrave, to which the bronze letters had been affixed by projecting tines.

According to Séguier's reconstruction, the text of the dedication read (in translation): "To Gaius Caesar, son of Augustus, Consul; to Lucius Caesar, son of Augustus, Consul designate; to the princes of youth." During the 19th century the temple slowly began to recover its original splendour, due to the efforts of Victor Grangent.

Architecture:

The Maison carrée is similar to a Tuscan style Roman temple as described in the writings of Vitruvius, a contemporary Roman writer on architecture, although it uses the Corinthian order. Raised on a 2.85 m high podium, and at 26.42 m by 13.54 m forming a rectangle almost twice as long as it is wide, the temple dominated the forum of the Roman city of Nîmes, in what is now southern France. The facade contains a deep portico or pronaos that is almost a third of the building's length and is richly decorated in terms of its columns and capitals. This deep porch emphasizes the temple front, and distinguishes the layout from ancient Greek temples.

It is a hexastyle design with six Corinthian columns under the pediment at either end, and pseudoperipteral in that twenty engaged columns are embedded along the walls of the cella. Above the columns, the architrave is divided into three levels with ratios of 1:2:3.

Egg-and-dart decoration divides the architrave from the frieze. On three sides the frieze is decorated with fine ornamental relief carvings of rosettes and acanthus leaves beneath a row of very fine dentils. However, the refinement of the decorative carvings on the building is not nearly as precise and mathematically perfect as the decoration on the Parthenon or other Greek temples.

A large door (6.87 m high by 3.27 m wide) leads to the small and windowless interior, where the shrine was originally housed. This is now used to house a tourist oriented film on the Roman history of Nîmes. No ancient decoration remains inside the cella.