Nuit des Musées en Essonne
Edition 2026 Electronic Birdwatching Mountain

Nuit des Musées en Essonne

A night to freely explore the museums and cultural sites of Essonne

Milly-la-Forêt — Essonne (91) Since 2005
Dates 23 May — 23 May 2026
Location Milly-la-Forêt (91)
Prices Free
Status Confirmed

About Nuit des Musées Essonne

The Nuit des Musées en Essonne (91) offers free late-night openings every third Saturday of May in the museums and cultural sites of the department. Le Cyclop in Milly-la-Forêt, the Musée Palaisien du Hurepoix, the Mus'X of École Polytechnique, and other exceptional venues open their doors until the heart of the night for unprecedented artistic and cultural experiences.

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Nuit des Musées en Essonne: Art and Culture in the Dark

Every third Saturday of May, the Nuit des Musées invites the public to explore the museums and cultural sites of Essonne from a new perspective: the night. This national event, coordinated by the Ministry of Culture, takes on a special dimension in Essonne thanks to the diversity and originality of the participating sites.

Exceptional Sites Open for the Night

Each edition of the Nuit des Musées en Essonne brings together a collection of remarkable sites that offer free late-night openings and special events:

  • Le Cyclop in Milly-la-Forêt: a monumental sculpture nestled in the woods, created by Jean Tinguely and Nikki de Saint Phalle with the participation of artists from around the world. At night, Le Cyclop reveals its metallic and luminous interior in a unique artistic performance combining electric guitar, tap dancing, and percussion.
  • Musée Palaisien du Hurepoix: free late-night opening in this municipal museum dedicated to the local history of Palaiseau and the Hurepoix plateau.
  • Mus'X — Musée de l'École Polytechnique in Palaiseau: free opening with access to the collection of historical scientific instruments, uniforms, and archives of the prestigious school.
  • Château de Dourdan: night visits of this medieval fortress with original themed activities.
  • Musée Sciences ACO in Orsay: night discovery of the Anneau de collisions, one of the world's first particle accelerators.

Le Cyclop, Jewel of the Nuit des Musées en Essonne

Le Cyclop in Milly-la-Forêt is undoubtedly the most spectacular site of the Nuit des Musées en Essonne. This 22-meter-high monumental sculpture, hidden in the woods of the Fontainebleau forest, was designed by Jean Tinguely and Nikki de Saint Phalle, with contributions from renowned artists such as Jean-Pierre Raynaud, Arman, Larry Rivers, and Ben.

During the Nuit des Musées, Le Cyclop comes alive during a unique nocturnal artistic performance: electric guitar, tap dancing, and percussion resonate within its illuminated mechanical interior, creating an unforgettable sensory experience from 9:30 PM to 11:30 PM.

Art, Science, and Heritage

The unique aspect of the Nuit des Musées en Essonne is its diverse range of venues, blending:

  • Contemporary artistic heritage (Le Cyclop)
  • Scientific heritage (Mus'X, Anneau d'Orsay)
  • Medieval heritage (Château de Dourdan)
  • Local and regional heritage (Musée Palaisien du Hurepoix)

This diversity reflects the cultural richness of a department often underestimated but which hosts some of the most original sites in Île-de-France.

A National Event with a Local Dimension

The Nuit des Musées is a national event launched in 2005, coordinated by the Ministry of Culture and celebrated throughout Europe. In Île-de-France, over 200 sites participate each year. Essonne is part of this dynamic with its own unique offerings that demonstrate the commitment of local cultural institutions.

Nuit des Musées Essonne — edition 2026

The 2026 Nuit des Musées in Essonne will be held on May 23, 2026. Le Cyclop in Milly-la-Forêt will offer a new night performance (9:30 PM-11:30 PM). The Musée Palaisien du Hurepoix and other Essonne sites will open their doors for free for cultural and artistic late-night openings.

Nuit des Musées Essonne 2026 — May 23, 2026

The Nuit des Musées 2026 will illuminate Essonne on May 23, 2026. Le Cyclop in Milly-la-Forêt will offer a captivating artistic night performance from 9:30 PM to 11:30 PM (electric guitar, tap dancing, percussion). The Musée Palaisien du Hurepoix in Palaiseau will host a free late-night opening. Other Essonne sites will be announced soon on the official Nuit des Musées website. Free admission.

Prices Nuit des Musées Essonne 2026

Free admission to almost all participating sites.

Practical information — Nuit des Musées Essonne

Practical Information

Period

Third Saturday of May, from 7 PM to midnight (times vary by site).

Participating Sites

Several sites throughout the department. Consult the complete list on the national Nuit des Musées website or on the Essonne Tourisme website.

Access

Varies by site. Le Cyclop in Milly-la-Forêt is accessible by car (Milly-la-Forêt road, then forest path) or by RER D (La Ferté-Alais station, shuttle).
The museums in Palaiseau are accessible by RER B (Massy-Palaiseau station).
The Château de Dourdan is accessible by RER C (Dourdan station).

Prices

Free admission to almost all participating sites during the Nuit des Musées.

Contact

National website: nuitdesmusees.culture.gouv.fr
Essonne Tourisme: www.essonnetourisme.com
Le Cyclop: www.leCyclop.com

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Where does it take place — Nuit des Musées Essonne

Sites culturels dans tout le département de l'Essonne

Route de Milly-la-Forêt, 91490 Milly-la-Forêt

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Nuit des Musées Essonne in brief

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