What ancient Roman structure, dating to the late 1st century BC, was unearthed beneath Piazza Andrea Costa in Fano, Italy, in January 2026?

A significant archaeological discovery in January 2026 beneath Piazza Andrea Costa in Fano, Italy, revealed the remains of an ancient Roman basilica. This structure, dating to the late 1st century BC, is particularly notable because it is believed to be the only building designed by the immensely influential Roman architect and engineer, Vitruvius, for which physical evidence has been found. For centuries, scholars have searched for this elusive structure, described in detail by Vitruvius himself in his seminal ten-book treatise, "De Architectura."

The unearthed basilica in Fano perfectly matches Vitruvius's descriptions, a detail that left archaeologists astonished. Vitruvius had outlined a rectangular building with a specific arrangement of columns: eight on the long side and four on the short side, with two central columns omitted on the side facing the forum. Excavations have confirmed these precise specifications, revealing massive column bases about five feet in diameter and an estimated overall height approaching fifteen feet. The discovery of a key corner column, exactly where Vitruvius’s plans projected it, provided definitive confirmation of the architectural layout and its attribution to the ancient master.

This finding is considered a monumental breakthrough in archaeology and architectural history. Vitruvius's "De Architectura" is the only surviving architectural text from classical antiquity and has profoundly influenced Western architecture for over two millennia, inspiring figures like Leonardo da Vinci. The Roman city of Fano, originally known as Fanum Fortunae, also holds historical significance, having been refounded by Augustus as a veteran's colony and expanded according to the Roman grid plan, which is still evident in the city's layout today. The basilica served as a public building for civic and administrative functions, highlighting the sophisticated urban planning and architectural prowess of ancient Rome.