During the Middle Ages, Suze la Rousse was the largest city in this Tricastin region and was therefore graced with a large fortress castle that was built in the 12th-14th centuries. Built with both military and civil purpose, it has fortifications and battlements on its exterior and a Renaissance style interior, with a fine Italian inner courtyard.
The castle is now home to the Universite du Vin - a private educational institute dedicated to the vine and wine. It has it's own vineyard with over 70 grape varieties and also offers courses for the amateur wine lover. The castle is open to the public.
The small town also features a church, pretty medieval lanes and houses with ancient carved stone doorways, and a charming bell tower with a wrought iron campanile.