Often overlooked by the more famous sites on the Ile de la Cite, like Notre Dame or Sainte-Chappelle, the Conciergerie is nevertheless worth a visit. It start life off as a royal palace, but eventually became a prison. It housed many notable victims of the French revolution, include Marie-Antoinette herself. You can buy a combination ticket at the nearby Sainte-Chappelle for entrance to both attractions.

A journey through the time tunnel, quite fun, interesting and exciting, as you feel the atmosphere and energy, positive (and negative when brought from the cells and productions), but genuine, as if you were there, thanks to a technology via genius QR Code. Congratulations to everyone at Monumenta! Highly recommended

It's right next door to Sainte Chapelle, so why not? But let's be frank - it simply cannot compete with the former. Perhaps it would be better to visit here before going next door. It's a little peculiar in its layout. After going through the cavernous entrance you eventually go up a few steps to find a shop on the left and a chamber on the right (there's also a kitchen on the right of the main entrance hall) and are sort of left wondering if that is it. Fret not - the tour continues on the other side of the shop with a brief trip upstairs and back down through a small chapel and courtyard. History buffs will find this most interesting (and there's plenty of info on offer) but I wouldn't suggest it will appeal to all ages. It's included with the Paris/Museum Pass but I'm not convinced it would be a must-go otherwise.

First visit to the Conciergerie with a ticket combined with the Sainte-Chapelle, we can well imagine the prisoners during the Revolution, clearly not a place where we would want to stay, it is nevertheless beautiful but it sends shivers down your spine! Incredible architecture, Marie-Antoinette's dungeon, hard karma to go from "Let them eat brioche!" in a similar place then the guillotine. Long live France haha

You can get a joint ticket with Sainte Chapelle (next door) for €20. Well worth the extra €7 on top of the SC individual entry to come here. It was used as a prison during the French Revolution and most of it has been set up to educate about those days. There isn’t a huge amount to see in the building itself really - I was more interested in the displays and the videos. Certainly worth a look though. I agree with other comments that the interactive tablet was fiddly to use and not user-friendly. I binned it after ten minutes. Bit of a waste.

I made a timed Reservation, but it was not necessary for entry (it was not crowded). They lend me one tablet for each person. You can select Japanese and you can watch the commentary video by loading it with points. However, this tablet is hardly easy to use. I took care not to drop it because it does not have a handle or band. The room in which Marie Antoinette was held does not appear to be open to the public now. I relied on the guide map to find it, but couldn't find it.

The conciergerie was a very important player in the French Revolution being a prison and centre of much of the trials. A magnificent building with high valued ceilings but a bloody past. Both Saint Chapelle (see seperate review) and Conciergerie are well worth visiting

Placed on the Ile de la Cité at the exit of the Pont au Change , "The Conciergerie " stands out to us. Indeed this medieval palace is made to surprise us by its unusual architecture in Paris. With its square corner tower , with battlements and a lantern , its defensive-style facades and especially its monumental entrance framed by two massive round towers , leave no doubt about its function . It was Philip II the Fair , who in 1185 had the fortified palace built , which we see today , before going on a crusade .  The interior of the palace, including the Gothic Guards Room, dates from this period. The king appointed an administrator of the building called "Concierge", which gave its name to the building. In fact the building has been redesigned several times over the years. In 1585, King Henry III of France , embellished the clock with a new dial, set on a blue background of gold fleurs-de-lis, and framed by statues of law and justice . During the Revolution in 1789 , the Conciergerie served as a prison and revolutionary court. Queen Marie Antoinette was imprisoned there before being executed in 1793 . The visit of the building is very informative with its various rooms , such as the one of the armed men , the Guards , the kitchens , the courtyard of prisoners , as well as the chapel of Marie Antoinette . 

The former royal prison and now a museum in the grounds of the Palace of Justice. Took a tour of this building. It's interesting to see the thick old walls that have seen many historical famous figures.

This castle that dates all the way back to the middle ages is a must-do when visiting Ile de la Cite. The visit will take you about 90 minutes. It features many rooms that recreate what life was like in the castle at the time of different important events. Marie Antoinette was held prisoner here until her execution, and you can have a peek at the cell where she was captive.