The monuments of France in this museum are life-size and all of them are fakes. The Cité de l’architecture et du patrimoine occupies the east wing of the Palais de Chaillot, the one that faces the Eiffel Tower, opened on 19 September 2007 and holds more than three hundred and fifty plaster casts, full-scale copies of portals, tympana, capitals and sculpture from the churches and cathedrals of half of France.

the cast gallery of the cite de l architecture, a long bright hall with tall windows on the left and full-size plaster romanesque portals on the right

Here the doors open at 11:00, later than you expect, and the museum closes on Tuesdays, as do the other two museums in this building. One part is shut for works as I write: the second level of the gallery of mural paintings and stained glass cannot be visited, and some lifts are out of service.

What is the point of crossing Paris to look at copies?

Let’s begin!

Walk in and go straight to the far end without stopping, the first time. The hall is long, tall and full of light from the windows, and along the far side stand whole portals, tympana, columns with storied capitals, all in plaster and all at the size of the original.

Then come back and get close to a capital. Here is what this museum gives you that a cathedral cannot: here the capitals are at the height of your eyes. In the church it comes from, a capital like this sits on top of a column, in half-darkness, and you look at it with your neck bent; here you can walk round it and count the fingers of the figures. The copy does not replace the monument: it does something else, and you notice within five minutes.

2. The Gothic portal and the roof of iron and glass

Lift your head as you walk among the later casts, the flamboyant Gothic ones, with their thin pinnacles and pierced arcading.

a gothic plaster portal at the cite de l architecture, with pinnacles and pierced arcading in front of a red wall and the iron and glass roof of the palais de chaillot

Above you is a structure of pierced iron beams and sheets of glass, and behind the plaster the walls are painted solid red. It is a combination you do not expect: French medieval architecture, the colour scheme of a contemporary museum, and the roof of a 1930s palace. Look for the cases with the models: there are sixty of them on the ground floor, and they give in miniature what the casts give at full scale.

3. The vault of Berzé-la-Ville, copied with its curve and all

How do you bring into a museum a fresco painted on a vault?

Like this. The museum holds thirty-six three-dimensional copies of mural paintings, which are neither photographs nor flat canvases: reproductions that also remake the shape of the surface the fresco is painted on.

the copy of the berze la ville vault at the cite de l architecture, a christ in majesty in a red robe inside a mandorla surrounded by apostles and saints on a dark ground

Look at this one. It is the apse of the chapelle des moines at Berzé-la-Ville, in Burgundy: a Christ in majesty inside a mandorla, the robe red and wide, the right hand raised, and around him, all along the curve of the semi-dome, apostles and saints crowded together, one of them holding a scroll with the lettering still legible. The curve of the semi-dome is the real one, and the colour is the colour the fresco had when the copy was made. To the flat copies the museum adds another forty-eight, plus six of stained glass.

4. The museum Viollet-le-Duc had in mind

The idea you are walking through is older than the building that houses it. In 1879 Eugène Viollet-le-Duc proposed a museum of comparative sculpture in which French casts would stand beside those of other countries, so that they could be compared: it opened in 1882 as the musée de Sculpture comparée, in the old Trocadéro palace.

There had been an earlier attempt, and it ended badly: the musée des Monuments français of Alexandre Lenoir, opened in 1795 to save what could be saved from revolutionary destruction, was suppressed in 1816 under the Restoration and its works were dispersed. The name, though, survived: the cast museum you are visiting is still called the Musée des Monuments français, and it is France’s third attempt to put its own monuments under a roof.

Go up to the floor of modern and contemporary architecture, which covers 1851 to today with three hundred models and about nine hundred drawings. This is the part tourists skip and architects do not.

Inside it is the strangest thing in the museum: the full-size reproduction of a type flat from the Unité d’habitation in Marseille, the one by Le Corbusier. You walk in, cross the double-height living room, climb the internal stair and understand in thirty seconds something the plans do not convey, which is how narrow it is and how tall. I am not showing it to you in a photograph, and in the next section I tell you why.

6. Why you cannot find free photographs of that part

Why does a museum full of copies have a copyright problem?

Because the casts are copies of medieval monuments, and those have been free for centuries, but the modern gallery shows twentieth-century work. In France a work stays protected seventy years after the author’s death, and Le Corbusier died in 1965: until 2035 his type flat cannot be photographed and published on a site like this one, which carries affiliate links and therefore makes commercial use.

It is worth knowing in advance, because it explains something you would notice anyway: searching for this museum online turns up the same Romanesque portals over and over and almost no image of the upper floor. The imbalance is not the museum’s: it belongs to the calendar of copyright.

Practical information

Details checked on 25 September 2026 on the official site citedelarchitecture.fr. Prices and opening hours change: check again before you go.

Tickets. The museum publishes on its own page a single ticket at 13 euros, which covers the temporary exhibition and the permanent collections, and a reduced ticket at 10 euros for under-25s who are not EU residents. There is also a ticket for the permanent collections alone, whose price the museum does not publish: ask at the desk. Free admission. Entry is free for everyone on the first Sunday of the month. The other free categories are listed in the museum’s own terms. Opening hours. The museum opens every day except Tuesday, from 11:00 to 19:00, and the ticket office closes at 18:20. On Thursdays it stays open until 21:00, with the ticket office open until 20:20. Closing days. It closes on Tuesdays; the annual closures are not published on the museum’s own page. Works in progress. The second level of the gallery of mural paintings and stained glass is closed, and some lifts are out of service. Paris Museum Pass. The museum accepts it, but it asks pass holders to book a time slot as well. Getting there. The entrance is at 1 place du Trocadéro. The stop is Trocadéro, on lines 6 and 9, in front of the building. How long it takes. The six stops need two hours, and the cast gallery alone deserves one.

The exhibitions on at the museum, with their dates, are in the table of exhibitions in Paris.

Where to go from here

In the same building, with separate tickets, are the Musée de l’Homme and the Musée national de la Marine. Going down towards the Seine you find the Musée d’Art Moderne de Paris, whose permanent collection is free, and the Musée Guimet on place d’Iéna. And if the casts have left you wanting a Gothic original, the Sainte-Chapelle is on the other side of the city.

Photo credits: cast gallery by Architecture Patrimoine (CC BY-SA 3.0); copy of Berzé-la-Ville by Chatsam (CC BY-SA 3.0); Gothic portal by HaguardDuNord (CC BY 3.0), from Wikimedia Commons.