A large black triangular panopticon public art installation stands in Madrid's Plaza de Cibeles, facing the historic palace.

SpY’s 20-Meter Black Triangle Hides Madrid’s Cibeles Square Behind Surveillance Feeds

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Written by Sam Johnson

2026-11-05

A solid black triangle, 20 meters along each side, now blocks part of the view across Madrid‘s Plaza de Cibeles as a panopticon public art installation. Step closer, and the structure starts to show the city in pieces.

The temporary work, called Panóptico, comes from Spanish urban artist SpY. Reports place it directly in front of the Palacio de Cibeles and facing the main facade of the CentroCentro cultural centre. Its flat, dark mass cuts sharply against the ornate stone around it.

The piece works on two opposing gestures: it hides the square and then reveals it. Small openings are set at different heights along the sides. Behind each one, a monitor shows live footage from cameras mounted near the peak of the triangle. The screens pick up traffic, pedestrians and nearby buildings from an elevated angle, so the viewer sees the square through a surveillance feed rather than directly.

Black triangular structure fills Plaza de Cibeles center, facing the historic Palacio de Cibeles.
the installation occupies the center of Plaza de Cibeles, facing the historic Palacio de Cibeles

The concept draws on Jeremy Bentham’s panopticon, the late 18th-century prison design in which one guard could watch every inmate without being seen. SpY’s version turns that logic around. Visitors become the watchers, and the city becomes the thing being watched. As urban surveillance art, this piece asks how cameras and public observation shape movement and privacy in a modern city.

The experience depends on where you stand. From a distance, the black mass breaks the usual lines of the plaza. Up close, visitors must choose an opening, move to another, and compare the views. Small changes in position produce very different scenes, which makes the point that perception depends on the viewpoint.

Temporary structure shaped as an equilateral triangle, each side measuring 20 meters long.
the temporary structure takes the form of an equilateral triangle measuring 20 meters per side

Madrid’s visual character runs through its interiors too, and a cinematic colour palette shaping a Madrid apartment shows how mood can be built from colour alone.

A temporary panopticon public art installation in the square

Madrid es Paisaje, a municipal programme on the links between art, heritage and urban landscape, commissioned the work for this site. It adds a viewing point to the plaza for a limited time and leaves the architecture untouched.

Matte black exterior contrasts sharply with the surrounding classical stone buildings of the plaza.
the matte black exterior finish creates a sharp geometric contrast with the surrounding classical stone architecture

The public art installation is free to visit until 24 October 2026, from 10:00 to 20:00. No booking is required. Visitors can walk in at any time during opening hours.

An earlier study of surveillance

SpY has tackled surveillance before. In January 2014, the Daily Mail reported that he had mounted 150 CCTV cameras in a regular grid on a building in central Madrid. All of them pointed at nothing in particular. The newspaper noted that SpY, known to some as the “Spanish Banksy,”.

Pedestrians cross the plaza around the large black structure, altering their usual walking routes.
the human scale alters pedestrian movement and circulatory flow through the public space

Reactions were mixed, according to the artist.

SpY’s comments from that period explain his method. He says the installation is meant to provoke passers-by into reflecting on their daily interactions with surveillance technology, and the people behind it.

Sharp angled corners of the black triangle stand out against the Madrid streetscape.
the triangular footprint creates sharp angled corner profiles visible against the Madrid streetscape

If the panopticon idea unsettles you, how Wi-Fi networks quietly track your movements explores the same watching logic in an invisible form.

The installation Panóptico applies the same approach at a larger scale. Its dark form and small windows give passersby a reason to slow down and look again at a square they cross every day.

Small viewing openings are cut into the lower walls of the black triangular structure.
subtle, discreetly placed viewing apertures puncture the lower envelope of the triangular volume
Visitors bend to peer through lower openings at digital monitors inside the black frame.
visitors look through the apertures to engage with digital display monitors housed within the framework
Closed-circuit cameras are mounted along the upper edge and peak of the black triangle.
closed-circuit television (CCTV) cameras are mounted along the upper rim and apex of the structure
Monitors inside the structure display live, high-angle camera feeds from above the plaza.
the system transmits live, high-angle surveillance feeds directly to the internal monitors
Fragmented screens show live footage of pedestrians, traffic, and nearby architectural details.
fragmented video streams display real-time footage of pedestrians, street traffic, and architectural details
Triangular structure evokes Jeremy Bentham's eighteenth-century panopticon architectural model in Madrid.
the installation references Jeremy Bentham’s eighteenth-century panopticon architectural model
Visitor peers through an opening at a screen showing live surveillance footage of the plaza.
by looking through the screens, visitors participate directly in viewing apparatuses that surveil them
A large black triangular panopticon public art installation stands in Madrid's Plaza de Cibeles, facing the historic palace.

Sources & Links

Source: designboom.com

Frequently asked questions

Where is SpY’s Panóptico installation located in Madrid?

The installation stands directly in front of the Palacio de Cibeles in Madrid’s Plaza de Cibeles. It faces the main facade of the CentroCentro cultural centre.

Is the Panóptico installation in Madrid free to visit?

Yes, the installation is free to visit until 24 October 2026, from 10:00 to 20:00. No booking is required, and visitors can walk in at any time during opening hours.

What idea does the Panóptico installation in Madrid draw on?

The installation draws on Jeremy Bentham’s late 18th-century prison design, the panopticon, in which one guard could watch every inmate without being seen. SpY reverses this logic, so visitors become the watchers and the city becomes the thing being watched.

Who commissioned the Panóptico temporary public art installation?

Madrid es Paisaje, a municipal programme on the links between art, heritage and urban landscape, commissioned the work for this site. The installation adds a viewing point to the plaza for a limited time and leaves the architecture untouched.

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