La Conciergerie ,Paris This important vestige of the Capetian Palace is a remarkable testimony of the civil architecture of the 14th century : the Guard room and the kitchens. The lower part of the Palace was mainly turned into a jail during the 15th century ; you may visit the dungeons (in particular Queen Marie-Antoinette's) and also discover memories of the French Revolution. The medieval (turkeyarena.com) aspect of the Conciergerie with the only remaining visible ancient capetian palace have been recently restored and opened to the public since January 11th 2000. Practical information Entrance fees : Full price : 5.50 Euros Reduced price : 3.50 Euros (large families, teachers, young people between 18 and 25) Free for young people / children : under 18 years old . Opening hours : From 1st March to 31st October : 9.30am - 6pm. From 1st November to 28th February : 9am - 5pm.