Arlon is (together with Tournai and Tongres) one of the three oldest cities in Belgium, functioning as an administrative and commercial center since Roman times. In modern times, the city, like other cities located in what is now Belgium, changed its political affiliation many times; in 1815 it found itself within the borders of the Kingdom of the Netherlands, and after 1830 - within the borders of independent Belgium. Today, Arlon is the capital of the province of Luxembourg, located right on the border with the Grand Duchy of Luxembourg.
However, the most important tourist attraction in Arlon is usually considered to be the Archaeological Museum (Musée Archéologique), one of the best museums of this kind in Belgium, with a rich collection finds from Luxembourg, including a collection of Roman sculptures and collections of burial art from the Merovingian era.