Château de Brézé is a unique historical monument built between the 11th and 19th centuries. It is actually a castle under which a complete fortress was dug out of the rocks. This was for protection against invasions such as those by the Vikings. It has one of the deepest dry moats in Europe. Under the castle, there are 3 km of tunnels and rooms. These were among the first known protection bunkers in history. They house historical bakeries, stables, dormitories, kitchens, a barrel room, and even a silkworm farm. For that alone, it is definitely worth a visit. The above-ground castle is built in a beautiful neo-Gothic architectural style. The current owners, the Count and Countess of Colbert, are still restoring it. With Vignobles Colbert, they produce a range of equally magnificent wines under the Saumur Champigny appellation. Thus, Château de Brézé is one of the major attractions of the region. The vineyards stretch around the estate and are among the best in Saumur.