
Photo : Cité de l'Architecture et du Patrimoine
Murder at the Museum at the Cité de l’Architecture – Season 2
Trade your tourist persona for a magnifying glass to solve a puzzling homicide hidden among iconic architectural replicas. Scour the galleries for clues as you piece together a motive that stretches far beyond these stone walls. This gripping investigation brings a thrilling layer of intrigue to one of the city's most impressive collections.
Cité de l'Architecture et du Patrimoine (Paris 16th)
About
The Cité de l'architecture et du patrimoine invites you to a thrilling immersive investigation on Saturday, October 31, 2026. Between 16:00 and 18:00, you will be tasked with solving the mysterious death of Grégoire Manchette, a renowned expert on Viollet-le-Duc, discovered near the reproduction of the Rouen Gros Horloge arch. This detective experience, designed for participants aged 14 and older, challenges you to uncover whether the motives behind this crime lie in his professional career or his private life. Tickets for this interactive mystery event are priced at 23 euros.
Grégoire Manchette, an international specialist on Eugène Viollet-le-Duc, is found dead in the place created by the great 19th-century architect.
He is discovered under the reproduction of the Gros Horloge arch from Rouen at the Cité de l'Architecture et du Patrimoine in Paris.
Is this death related to his profession as an architect for the Bâtiments de France, his role as a university professor, his activities as an author... or is it his private life catching up with him?
It is Wednesday, January 31, 2024.
Our take on this event
Step into a real-life crime scene on October 31, 2026, as the Cité de l'architecture et du patrimoine transforms into the setting for a complex investigation. Grégoire Manchette, a leading authority on the work of the 19th-century architect Viollet-le-Duc, has been found dead under the museum's replica of the Rouen Gros Horloge arch.
From 16:00 to 18:00, attendees will explore the venue to gather clues and determine the circumstances surrounding this tragedy. Was his death connected to his role as a government architect, his university teaching, his writing projects, or perhaps something hidden in his personal life? This event is open to visitors aged 14 and up who are ready to put their detective skills to the test over a two-hour session.
The cost to participate in this exclusive event is 23 euros. Join us at the museum, located at Place du Trocadéro, for an afternoon of suspenseful discovery within one of Paris's most iconic architectural landmarks.











