Building facade in Brussels, covering the exterior of the new Magritte Museum before it opened. According to one of my readers, Hugo H., behind the "curtain" you can see Magritte's probably most famous painting, "Her Rijk Der Lichten" (The Empire of Lights).
Le Palais de la Berbie, France. This ancient fortress now houses the Musée Toulouse-Lautrec. Brick building designed to protect the bishops of Albi from the hostility of the Cathars, and the citizens of the city, it has a dungeon, four towers and ramparts. The fortifications were subsequently destroyed as rendered obsolete.
The Antonine Wall is the largest relic of the Roman occupation of Scotland. Built around AD142, on the orders of the Emperor Antoninus Pius, it marked the northern border to the Roman Empire and was constructed as a defence against the northern tribes.