The Triumphal Arch is a monument located in the northern part of Bucharest, in sector 1. It is located at the intersection of Kiseleff Road with Constantin Prezan, Alexandru Averescu and Alexandru Constantinescu Boulevards.

The monument designed by Petre Antonescu, was built between 1921-1922 with a height of 27 m with a single opening and parallelepiped shape. Both Romanian and 10 Italian sculptors were used to carve the marble. According to the chronicles of the time, considerable efforts were made to build and complete the work, seen as an emblem of the "little Paris" of those years.

The inauguration of the Arc de Triomphe took place on December 1, 1936, 18 years after the Union of Transylvania with Romania, being a large event, honored by personalities of the time, including King Charles II, his mother, Queen Maria, Crown Prince Mihai, members of the Romanian government and numerous other guests of honor from the country and abroad.

The Arc de Triomphe is, along with the Coronation Cathedral in Alba Iulia, the Mausoleum in Marasesti, the Cross of the Nation's Heroes on Mount Caraiman, the Mausoleum and the Tomb of the Unknown Hero in Carol Park, symbols of Romania's participation in the First World War. which almost all the territories inhabited by Romanians were found for the first time reunited in Greater Romania.

Architectural elements with historical significance can be observed on the Arc de Triomphe:

• The central inscription on the pediment of the north façade, which commemorates the coronation of Their Majesties King Ferdinand and Queen Maria in Alba-Iulia
• The central inscription on the pediment of the south façade, which recalls the victory in the First World War
• The central inscription on the pediment of the east façade, dedicated to the politicians and culture that made the Union possible
• The central inscription on the pediment of the west façade, which recalls the war heroes who fought for the Union
• List of localities where battles were fought in the First World War, represented right inside the Arch
• King Ferdinand's message, on August 27, 1916, on the occasion of entering the war
• Proclamation to the country made by King Ferdinand in Alba Iulia, on October 15, 1922, on the occasion of his coronation as King of Greater Romania
• The effigies of King Ferdinand and Queen Maria, on the southern façade
• The Royal Coat of Arms of Romania (in its old form, from before 1922, the middle version)
• His Royal Highness King Charles II, during whose reign the current form of the monument was built
• The medallion entitled "Manhood", on the north facade of the Arch, by the sculptor Ion Jalea, with reference to the motto "Manhood and faith".
• The medallion entitled "Faith", on the north facade, by the sculptor Constantin Baraschi
• Some data of the confrontations from the First World War on the Romanian front

Today, the Arc de Triomphe is one of the well-known symbols of the Romanian capital. It also houses a small museum with four exhibitions: the Great War of the Reunification of the Nation (photography and film), the Heraldry of the Great Boyar Families (bronze effigies, photographs), the Arc de Triomphe in Images (photographs, models), the Great Union of 1918 ( where the reproduced crowns and scepter are also found; photos)