Perched on a forested crag in the foothills of the Alps, Lichtenstein Castle is the archetypal fairy-tale keep. It was built between 1840-42 by Count Wilhelm of Württemberg, then an independent kingdom in southern Germany. Wilhelm was inspired by a novel popular at the time called Lichtenstein, a romantic portrayal of the region's chivalric warriors in the Middle Ages. His neo-gothic citadel was erected on the supposed foundations of an earlier stronghold of the noble knights of Lichtenstein not to be confused with the Principality of Liechtenstein whose lineage faded by the 17th century. The castle's keep and outer buildings are linked by a narrow causeway; its broad crenellated stone walls meld into a cliff face that drops down into the Echaz Valley below. But its seeming impregnability ought not deter visitors nowadays, the castle is a popular spot for weddings.