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Culture & Heritage

Alhambra Runs a Real-Time Digital Twin to Anticipate Risks

The Alhambra uses a sensor-fed 3D digital twin of its 67 hectares to monitor structure, visitor flows and conditions in real time.

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Five people posing in front of the main portal of the Palace of Charles V in the Alhambra
Five people pose in front of the Palace of Charles V at the Alhambra, in a photo published with the Junta de Andalucía announcement of the Alhambra Digital Twin.

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The Alhambra in Granada now runs a digital replica of its 67 hectares that shows what is happening across the monument in real time. The Agencia Digital de Andalucía developed it within the Alhambra Living Lab project with the Patronato de la Alhambra y Generalife, the Universidad de Granada and the technology company Libelium. It is meant to help managers anticipate risks to the historic fabric and improve how visits are run. The Junta de Andalucía's Consejo de Gobierno recorded the twin's entry into operation in a session dated 16 September 2026, and the project was presented at the TAIGranada event in October 2026.

How it works

A network of sensors across the site feeds the twin: 39 for visitor capacity and movement, seven for structural monitoring of the historic buildings and 16 for environmental monitoring of air, soil, noise and particulates. IDEAL reports that the twin combines thousands of 3D images with more than 70 sensor-fed indicators, a count that differs from the Junta's sensor totals. The indicators capture vibration, inclination of certain structures and weather conditions, and the data is integrated into a three-dimensional representation of the monument. Regional officials say this lets conservators plan repairs, predict wear, simulate climatic and seismic effects and study visitor flows without touching the monument.

Use during the Granada earthquake swarm

According to the Junta de Andalucía, the twin proved its usefulness during the recent seismic swarm in the province of Granada. IDEAL reports that the model showed in real time how visitors moved towards open spaces during the tremors, and the sensor probes measure residual impact and stress drift in the architecture afterwards.

Visitor-facing experiences

The management twin is not fully open to the public. The Patronato does, however, offer a web-based virtual visit of the monument that includes gamification: users can create an avatar and interact with others in settings such as the Palace of Charles V, and a conversational agent adapts explanations to each visitor's profile. The Junta describes further immersive virtual-world spaces and augmented reality recreations of areas closed to visitors as features that will be added.

Funding

The Junta reports an investment of more than EUR 2.3 million, 75% of it co-financed by European NextGenerationEU funds through the Spain Living Lab project.

Quotes

“To make a digital twin you have to know the heart of what you want to replicate. If you don't know how it works and how it breathes, it is no more than a set of data.”

“is a high-performance digital cultural laboratory that allows non-invasive monitoring of the structural state of this unique site, anticipating where deterioration may appear.”

“We can plan repairs, predict wear, simulate the action of climatic agents and tectonic movements, and study visitor flows without leaving a trace on the monument, like a permanent, dynamic X-ray that lets us see beneath the skin of its history and detect tensions invisible to the human eye.”

“The probes distributed around the site measure the residual impact and the stress drift in the architecture after the movements, ensuring that the heritage conservation objective is met with rigorous technical data. This methodology makes it possible to identify silent fatigue and progressive deformations that could go unnoticed.”

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