ティエールの城壁
The "Porte d'Orléans" is one of 17 "portes" (city gates of Paris) in the Thiers wall, a defensive wall constructed in the mid-nineteenth century to protect Paris. The wall was demolished after the First World War, creating an open space that was subsequently built up. The Porte d'Orléans is now one of the main gateways to the capital, and is located in the 14th arrondissement of Paris.