The Porte de Paris is the only surviving city gate of old Lille, built between 1685 and 1692 in honour of Louis XIV's 1667 conquest of the city from Spain. It is a triumphal arch in the Roman tradition — 35 metres high, faced in white limestone, decorated with allegories of Fame, Victory, and the River Scheldt — and one of the most elaborate expressions of Sun King self-promotion outside Versailles itself. The irony that the city being celebrated for conquest commissioned and paid for the arch is a detail Louis apparently did not find troubling.
The gate stands at the southern edge of the city centre, a short walk from the Palais des Beaux-Arts, and can be walked through freely. The side facing the city shows Mars and Hercules; the road side shows Louis XIV in Roman armour above an inscription proclaiming his glory. The proportions are theatrical and the carved detail on the upper sections is impressive, particularly the bas-reliefs celebrating the king's military campaigns. A small square at the base makes it easy to view.