(only in Italian language)
Hadrian's Villa in Tivoli – built by Emperor Hadrian starting in 117 AD – is the largest and most complex imperial Villa of Roman antiquity, one of the architectural masterpieces of all time.
Rediscovered at the end of the fifteenth century, it has been studied for more than five centuries, but there are still many secrets to discover, which are revealed in this book. It focuses on the Accademia Esplanade – the highest of the Villa – and its buildings: Accademia and Roccabruna, and tells their thousand-year history.

The Accademia building is still privately owned and has never been open to the public. You will visit it virtually thanks to splendid unpublished photographs such as those of the Temple of Apollo. It is a large circular Hall measuring 13 metres in diameter, once covered by a dome: it was seen, studied and drawn by some of the greatest architects of the Renaissance, including Pirro Ligorio and Andrea Palladio.

The Accademia is located on the Accademia Esplanade, which is accessed via an inclined ramp near the Roccabruna building, which is open to the public and is included in the visit routes of Villa Adriana.

Roccabruna can be reached via a path that starts from the Antiquarium near the Canopus, walnik alongside an olive grove with centuries-old trees.
The building has a lower floor with a large domed Hall measuring nine metres in diameter. On the upper floor there was a circular Temple with sixteen Doric columns; the octagonal inner cell had a door facing the Accademia and three windows. The Temple collapsed in late antiquity, and was covered by a dome of which large fragments of concrete can be seen on the ground. In 1940 Lugli designed the reconstructed elevation.

Inside the domed Hall on the lower floor, four masonry ducts emerge that open into the facades. Thanks to our field surveys and Archaeoastronomy, we have discovered their function and symbolic secrets.
Two of them were "luminous ducts" that still today create spectacular illuminations on the days of the Summer Solstice (June 21) or on those of the Winter Solstice (December 23).
Only on those dates do the Sun's rays enter through the ducts, creating a Blade of Light that had a precise symbolic meaning linked to the goddess Isis who dominated the Universe and the Seasons, as we explain in our book.
Parte I - Giuseppe Veneziano, Il Cielo sulla Terra:
 1. L’uomo, la Spiritualità, il Cielo;  2. Il cielo quale origine e destinazione della natura umana; 3. Roma, la filosofia greca e l'astrologia; 4. Roma e l'astronomia; 5. Templum in coelo, templum in terra. Astronomia nei riti di fondazione; 6. Astronomia e architettura antica; 7. L'astronomia nelle festività del calendario romano.
Parte II - M. De Franceschini, Villa Adriana:
8. Archeoastronomia romana: i precedenti;: Horologium Augusti,  Domus Aurea, Pantheon. 9. Villa Adriana;  10. Accademia;   11. Roccabruna;
Parte III - Conclusioni:
12. M. De Franceschini, Archeoastronomia a Villa Adriana: significato simbolico 13. G. Veneziano, Orientamenti astronomici a Villa Adriana;
Parte IV - Appendice - Parte V - Bibliografia e indici.