Old Québec has the distinction of being the only surviving walled city in North America above Mexico. The fortifications were constructed first by the French and later the British from 1608 until 1871. At the peak, there were six entrances through the defenses. Porte Saint-Louis is one of two built in 1693, making them the oldest. This gate was torn down and rebuilt twice. The current version was erected in 1880. Porte St. Louis is the closest portal to the Citadel.
