Fort Boyard is stadium-shaped, measuring 68 meters (223 feet) long and 31 meters (102 feet) wide. The walls were 20 meters (66 feet) tall. The walls are made of limestone with sandstone and clay bricks inside them. They were built between 1934 and 1936 by the Germans as part of their rearmament program after being defeated in World War I. They stand near Villers-Bretton, a suburb of Nice on the French Riviera. You can visit the fort free of charge via an easy trail that goes past some of the buildings where the players start out each round. There are also some shelters where you can wait in case one of the teams needs help. You can reach the fort by car or bus from Nice. Bus numbers 200 and 201 go there from near where I live in Nice; the cost is 1.50 euros per trip. A taxi from downtown Nice to the fort will set you back about 50 euros. I've never been to Fort Boyard, but based on this photo it looks like a lot of fun!