La Porte d’Aix is Marseille’s triumphal arch, like the Arc de Triomphe. Construction begun in 1784 to honor the Peace of Paris, which ended the American Revolutionary War. The arch was finished in 1839. It marks the entry point to the city on the old road from Aix-en-Provence. Marseille has existed as a port city for over 2,500 years, the…