SpY's PANOPTICON, a black triangle in Plaza de Cibeles in front of the Palacio de Cibeles, Madrid

SpY’s PANOPTICON turns a black triangle on Plaza de Cibeles into a watching device

For five days in October, a black triangle twenty metres on each side stood in Plaza de Cibeles, in front of the Palacio de Cibeles in Madrid. PANOPTICON (PANÓPTICO) is a work by the anonymous artist SpY. It was open to the public free of charge from 20 to 24 October 2026, between 10:00 and 20:00.

The installation was part of Madrid es Paisaje 2026, a city programme whose theme this year looked at art in the shaping of the urban landscape. According to SpY, PANOPTICON reflects on the way we observe contemporary space.

Black triangular structure of PANOPTICON beside the facade of the Palacio de Cibeles
Photo: Rubén P. Bescós.

An interruption in the square

The triangle’s elementary geometry sets it apart from the distinctive architecture around it. It cuts across the square’s familiar sightlines and, for a while, changes a view that is deeply rooted in the city’s collective imagination.

The sloping face of PANOPTICON in Plaza de Cibeles
Photo: Rubén P. Bescós.

Its scale also relates directly to the human body. As a result, the structure unsettles familiar references of proportion. It affects how people move around it, how they find their bearings and how they look.

PANOPTICON in Plaza de Cibeles on a clear day
Photo: Rubén P. Bescós.

Looking through the triangle

As visitors approach and walk along its perimeter, small openings appear in the black surface. Each one is a viewing aperture fitted with a screen. The screens connect to CCTV surveillance cameras mounted at the top of the structure.

A visitor looking through a viewing aperture in PANOPTICON
Photo: Mark(os).

Where the triangle had first blocked the view of the square, the screens now return it in fragments. Architecture, pedestrians and traffic reappear from unexpected angles.

Aerial view of PANOPTICON and the Palacio de Cibeles
Photo: Rubén P. Bescós.

Watching and being watched

The device draws on the concept of the panopticon. In that model, the possibility of being watched leads people to internalise surveillance and regulate their own behaviour, even when no observer is visible.

PANOPTICON under a cloudy sky in Plaza de Cibeles
Photo: Rubén P. Bescós.
Visitors walking around the base of PANOPTICON
Photo: Rubén P. Bescós.

SpY extends the idea to a society in which cameras, screens and digital devices increasingly mediate our relationship with the world. We observe, record and share our surroundings all the time. In doing so, we also take part in systems that expose us to the gaze of others.

PANOPTICON therefore places the viewer at the centre of a paradox. By using the apertures to discover the square, visitors join a surveillance system that may also be watching them. The work, according to the artist, asks how far we have come to accept these mechanisms in everyday life.

PANOPTICON seen edge-on in front of the Palacio de Cibeles
Photo: Rubén P. Bescós.
PANOPTICON in front of the Palacio de Cibeles, Madrid
Photo: Rubén P. Bescós.

Artist: SpY
Photography: Rubén P. Bescós / @rubenpb, Mark(os)
Location: Plaza de Cibeles, Madrid, Spain

Subscribe to Sketchure

A periodic digest of new stories on art, design, architecture and craft.

Don't Miss

Black and white portrait of Japanese artist Kengo Kito

Kengo Kito and the 30 percent left to chance

Japanese artist Kengo Kito talks painting, mass-produced materials, Yoshitomo Nara and the
Nebula, a world in Synfield by Sandra Bamboo, real-time screen capture

Synfield, a field of light that answers the hand

Sandra Bamboo's Synfield is a free artwork in the browser, a set