Every French schoolchild learns about Paris's Conciergerie on Paris's Île de la Cité (map), and many must shudder as they pass it, for here were imprisoned those destined for decapitation at the guillotine under the Reign of Terror.

The building dates from the Middle Ages, when it was an administrative office of the Crown, but it is most famous for its days as a prison.

The French Revolution (1789) resulted in the execution of many French nobles and members of the royal family, including the queen, Marie Antoinette.

In all, more than 2600 condemned were taken from the Conciergerie to the guillotine.

After the royals were done for, the mob turned to other points of the political spectrum, and soon the fury of the Terror consumed the most prominent leaders of the Revolution, and even the judges who had condemned them!

Then, as with the Salem witch trials, everyone had enough and the bloodshed ended.

You can visit the dank cells where these unfortunates spent their last days and hours, and marvel at the vagaries of fate.

Before you get too depressed though, head for La Sainte-Chapelle (in the next building), for a lift in your spirits.

Métro: Cité, St-Michel or Chatelet
RER: St-Michel

Paris Museum Pass accepted.

Le Conciergerie
2, boulevard du Palais
Île de la Cité (map)
Paris 75001
Tel: +33 1 53 40 60 80