The Conciergerie was built in the 10th century to be the main palace for French kings who, over the centuries, enlarged it. Its Great Hall was one of the largest in Europe; another hall was where the palace’s 2,000 workers ate. Some buildings were converted into a prison in the 14th century. The palace later became a revolutionary tribunal and prison during the Reign of Terror, with famous prisoners including Marie Antoinette and Madame du Barry.
A good way to take in The Conciergerie and to learn much more about its history and the terrible history of the French Revolution is to sign up for this walking tour, conducted by expert in French history.