The Abbey of Saint-Roman is a cave monastery which includes the ruins of a castle (château de Saint-Roman-d'Aiguille), a chapel, cloisters, terrace, tombs and walls. It was constructed in the 9th, 10th, 12th and 15th centuries.
The abbey is reached by a signposted path from Beaucaire which leads past a vast chamber and the monks’ cells to the chapel carved out of the rock which contains the tomb of St Roman. From the terrace, there is a fine view over the Rhône, Avignon and the Mont Ventoux area with Tarascon in the foreground.References:
The Château du Haut-Koenigsbourg is situated in a strategic area on a rocky spur overlooking the Upper Rhine Plain, it was used by successive powers from the Middle Ages until the Thirty Years' War when it was abandoned. From 1900 to 1908 it was rebuilt at the behest of the German kaiser Wilhelm II. Today it is a major tourist site, attracting more than 500,000 visitors a year.
The first records of a castle built by the Hohenstaufens date back to 1147. The fortress changed its name to Koenigsburg (royal castle) around 1157. The castle was handed over to the Tiersteins by the Habsburgs following its destruction in 1462. They rebuilt and enlarged it, installing a defensive system designed to withstand artillery fire.
The fortification work accomplished over the 15th century did not suffice to keep the Swedish artillery at bay during the Thirty Years War, and the defences were overrun.