Before cities, before houses, before the very idea of architecture, there was rock. In Puglia, more than almost anywhere else, this truth takes on a concrete and powerful form: a widespread system of karst caves that tells the story of over 800,000 years of continuous human presence, predating the emergence of Homo sapiens by hundreds of thousands of years.

With the recent approval by the Puglia Regional Government of the process to nominate the Karst Caves of Prehistoric Puglia for UNESCO recognition, attention is once again turning to an extraordinary heritage that has remained for too long on the margins of the region’s official cultural and tourism narrative. A heritage that is not merely archaeological or geological, but deeply architectural, in the most fundamental sense of the word.

Caves as humanity’s first “architectures”

Caves are not simply natural cavities: they were the first inhabited spaces, the first places adapted by humans to meet their needs for survival, social interaction and ritual. Within them we find the fundamental principles of architecture: protection, orientation, control of light and a relationship with the surrounding landscape.

In Puglia, this relationship is particularly evident. The region’s karst landscape provided stable, secure and climatically favorable shelters, allowing different human species to settle here long before the arrival of Homo sapiens. This is the case with sites such as Pirro Nord near Apricena, dating back approximately 800,000 years, and the Grotta di Lamalunga near Altamura, famous for the discovery of one of the best-preserved Neanderthal remains in Europe.

These places are not merely traces of human life: they are structured spaces, inhabited, transformed and marked by repeated human activity over time. In other words, they represent the invisible foundations of Mediterranean architecture.

A widespread geo-archaeological park

The UNESCO nomination project does not concern a single site, but rather a unified territorial system, a genuine widespread geo-archaeological park involving eleven municipalities across Puglia, from Apricena to Parabita, from Altamura to Castro, and from Ostuni to Otranto.

Among the sites included are places of exceptional universal value, such as:

  • the Grotta dei Cervi at Porto Badisco, unique for its post-Paleolithic rock paintings;
  • Grotta Romanelli near Castro, a key site for the study of the Upper Paleolithic and the earliest symbolic expressions of human culture;
  • the Grotta delle Veneri near Parabita, known for finds associated with fertility rituals and some of the earliest representations of the human body;
  • the Grotta delle Streghe (or Striare) at Santa Cesarea Terme, which testifies to the continued use of natural caves as places of shelter, observation and interaction with the sea;
  • the cave complex of Nardò, including Grotta del Cavallo, Grotta di Paolo Roversi and Grotta di Torre dell’Alto, which has yielded some of the oldest remains of Homo sapiens in Europe, alongside traces of Neanderthals, documenting the crucial phase of transition and coexistence between the two species.

This widespread distribution offers a new image of Puglia: not a “peripheral” land, but a fundamental bridge in European prehistory, facing the Mediterranean and shaped by migrations, exchanges and human adaptation.

From rock to city: architectural continuity in Puglia

One of the most fascinating aspects of this nomination is the possibility of reading caves as the direct ancestors of Puglia’s historic architecture. Natural cavities influenced building practices for centuries: from rock settlements and underground churches to cave dwellings and dry-stone structures.

The same rocks that preserve traces of prehistoric life were, millions of years later, used to build cathedrals, castles, villages, trulli and courtyard houses. In Puglia, the built environment does not simply overlap with nature: it is an extension of it.

In this sense, caves are not merely sites to be protected, but material archives of humanity’s memory, telling the story of a profound and continuous relationship between people and landscape.

A heritage to experience, not simply preserve

UNESCO recognition would represent a decisive opportunity not only from a scientific perspective, but also culturally and socially. As emphasized by SIGEA – Italian Society of Environmental Geology, the challenge is not simply to prepare a solid scientific dossier, but to involve local communities, making them active participants in a shared process of enhancement and preservation.

In line with the principles of the Faro Convention, heritage is not understood as a static asset, but as a living resource capable of generating knowledge, identity and sustainable development. It points toward a form of slow, conscious cultural tourism, deeply connected to places and to their most ancient stories.

A Puglia that came first

The realization that Puglia was inhabited hundreds of thousands of years before Homo sapiens radically changes our perception of the region. It is no longer merely a land of passage or of later historical layers, but a deep cradle of humanity, where history begins beneath our feet.

The caves of Puglia remind us that our present coexists with an extraordinarily ancient past, often invisible yet still preserved. Protecting and promoting them means recognizing that the architecture, culture and identity of this land have their roots in the rock, in darkness and in the silence of the cavities that sheltered some of Europe’s earliest human inhabitants.

And it is precisely from there—from that pre-Sapiens Puglia—that a new vision of the future may emerge.