Located in the 1st arrondissement of Paris on the Island of the City (Ile de la Cité), in the lower part of the former Royal Palace of the Capetians, along the Quai de l'Horloge, the Conciergerie is sadly known for having been the main prison used during the French Revolution. A listed Historic Monument since 1914, this former jail had such famous inmates as Queen Marie-Antoinette during the Terror.
Once you're inside the building, as well as the reconstructions of dungeons and the chapel commemorating Marie-Antoinette, you can discover exceptional Gothic rooms from the 14th century, like that of the Men-at-Arms, which is immense and impressive in equal measure.
Accessible from the Cité, Châtelet and Saint-Michel Metro stations, the Conciergerie can be explored on a self-guided tour, with an information sheet, or on a guided tour if you wish to learn a little more about this important historical site.
Not far from there, if you cross the Pont Neuf or Pont au Change bridges to the Quai de la Mégisserie on the Seine's right bank, you can enjoy a magnificent view of the Conciergerie's façades and towers!