Have you ever wandered through the majestic ruins of the Baths of Caracalla and wondered what became of the water that, nearly 2,000 years ago, brought one of ancient Rome's most extraordinary thermal complexes to life? It was the water that filled its pools and fountains, accompanying Romans on a journey dedicated to the wellbeing of both body and mind through bathing, massages, physical exercise and heated rooms, in perfect harmony with the celebrated ideal of mens sana in corpore sano.
Today, almost 1,800 years later, this essential element has symbolically returned to its rightful place with the Reflecting Pool, a contemporary architectural intervention that blends with remarkable subtlety into the monumental setting of the Baths, creating a harmonious dialogue between past and present.
The Reflecting Pool, an elegant basin measuring 42 by 32 metres, was designed to evoke the ancient Natatio, the vast open-air swimming pool that once formed the heart of the Roman baths. Fed by water flowing over three sides, the pool is raised just 10 centimetres above ground level, creating an impression of remarkable lightness that merges seamlessly with the surrounding architecture.
Designed as a multifunctional space, the installation also serves as a venue for cultural events. Thanks to a stage capable of hosting theatre performances, classical music concerts, dance productions, conferences, talks and public lectures, the Reflecting Pool can be transformed into a genuine theatre of water — and on water — where art and functionality come together in perfect balance.
The sophisticated lighting design makes the experience even more atmospheric. Three sides of the stage are enhanced by a continuous strip of warm-white LED lighting, while on the main side, a fine misting system creates a delicate veil of vapour that drifts across the centre of the pool. The effect recalls the ambience of the calidarium—the hottest room in the ancient Roman baths, dedicated to hot-water and steam bathing—bringing back the evocative atmosphere of the original thermal complex.
The pool floor also plays its part in the spectacle. Twenty water jets, paired with twenty integrated light sources, create a continuous interplay of reflections, movement and light, offering visitors a deeply immersive and visually striking experience.
The basin's black lining, made from innovative materials, is far more than an aesthetic choice. It transforms the water's surface into a mirror that reflects and amplifies the grandeur of the surrounding ruins, enhancing their perspectives, architectural details and monumental scale.
Conceived by architect Hannes Peer and developed in collaboration with architect Paolo Bornello, the installation restores water to its historic role as the site's central feature while offering visitors a new way to experience and appreciate one of ancient Rome’s most captivating monuments.
Photo credits: Fabio Caricchia, MiC-Soprintendenza Speciale di Rom
