Porte Saint-Martin is a historic triumphal arch located in the 10th arrondissement of Paris, France. Built in 1674, it was designed by architect Jacques Hardouin-Mansart to commemorate the victories of King Louis XIV. The arch features intricate sculptures and inscriptions that celebrate the king's military achievements. The structure stands at 23 meters tall and 14 meters wide, making it an impressive landmark in the city. It is situated along the Boulevard Saint-Martin, a bustling street that connects various neighborhoods. Today, Porte Saint-Martin is a popular spot for both tourists and locals, reflecting the rich history of Paris.