Arch of Marcus Aurelius And Lucius Verus - Tripoli, Libya

This marble monument is called the Arch of Marcus Aurelius, although it commemorates the victories of his brother Lucius Verus. In 161, the Parthian king Vologases IV had attacked the Roman Empire and annihilated the Ninth legion Hispana. Lucius Verus led the counter-attack and sacked the Parthian capital Ctesiphon.
Hadrian's Gate - Turkey

A triumphal arch was built in the name of Emperor Hadrian who visited Antalya in 130 AD. It was named the Hadrian's Gate or Hadrianus Gate or TheThree Gates. It has three arched gates. According to the legend, Sultan Belkis, the Queen Sheba, is said to have passed under those gates and enjoyed a happy day in the palace in Aspendos on her way to visit King Solomon. Formerly the city walls enclosed the outside of the gate and it was not used for many years. This may be the reason why it has not been harmed, and it was only revealed when the walls collapsed. It is considered as Pamphylia's most beautiful Gate. The upper part has three apertures in the shape of a cupola, and except for the pillars is built entirely of white marble. The ornamentation is very striking. The original Gate was two storeys but little is known of the top storey.
Triumphal Arch of Orange - France

The Triumphal Arch of Orange or Arc de triomphe d'Orange (in French) is a triumphal arch located in the town of Orange, southeast France. It was constructed during the reign of Augustus. It was built on the former via Agrippa to honor the veterans of the Gallic Wars and Legio II Augusta. It was later reconstructed by Emperor Tiberius to celebrate the victories of Germanicus over the German tribes in Rhineland. The arch contains an inscription dedicated to Emperor Tiberius in 27 AD. It is decorated with various reliefs of military themes, including naval battles, spoils of war and Romans battling Germanics and Gauls. A Roman foot soldier carrying the shield of Legio II Augusta is seen on the north front battle relief.
Arch of Germanicus - France

This is a triumphal arch called the Arch of Germanicus. It was built at the entrance to a bridge, where the main Roman road crossed the Charente River. The bridge was demolished in 1843 but the Arch was saved and rebuilt at its present location on the bank of the river.
Triumphal Arch at Glanum, France

Saint-Rémy-de-Provence is a commune of southern France, in the Bouches-du-Rhone department, in the former province of Provence.
Many of these triumphal arches have been declared World Heritage Sites by UNESCO to ensure that these are properly restored and taken care of.