Conciergerie, Former prison in Paris, France.
The Conciergerie is a building in Paris, France, located on the west of the Île de la Cité, formerly a prison but presently used mostly for law courts.
It was part of the former royal palace, the Palais de la Cité, which consisted of the Conciergerie, Palais de Justice and the Sainte-Chapelle.
During the French Revolution, it functioned as a prison for 'enemies of the revolution'.
Today, it's a popular tourist attraction, especially for its medieval architecture.
Marie Antoinette was imprisoned here before being executed on the guillotine.
Location: 1st arrondissement of Paris
Architectural style: Gothic architecture
Opening Hours: Monday-Sunday 09:30-18:00
Website: paris-conciergerie.fr
Sources: Wikimedia, OpenStreetMap