Imagine the scene: it's the year 1568, and the Tower is still under construction. Riding on horseback, there arrive Engineer Giovanni Tommaso Scala and Viceroy Pèdro Afàn de Ribèra. The first is - one would say today - in charge of the construction site. The second is his boss: the person responsible for the entire defense tower project, personally chosen by Charles V, who has come on-site for an inspection. If you are picturing them as tired, you're not wrong: the operation was truly monumental.

Along the coast of Pùglia, generally, these towers were built about 30 kilometers apart from each other. However, the Gargano coastline is rocky, rugged, and, as we have seen, strategically coveted. Therefore, it was decided to build 10 towers along the shores from Fortòre to Manfredònia, each one 10 kilometers apart. Torre San Felice is the easternmost of them.

The base of the tower is in the shape of a truncated pyramid, ideal for a point that is highly exposed to potential attacks. This design solution was described in official documents with extreme precision: the outer structure had to "feature a continuous slope between 5 and 10 degrees to ensure structural solidity against the pressures exerted by artillery."

The side facing the sea has no openings, and it's only on the lateral facades that you can find openings for scanning the horizon. However, originally, small openings were present on all fronts.

Inside the Torre, there is a single space, accessed from the inland side via an external fixed staircase. This staircase is too a later addition. During construction, a wooden staircase was used to access the interior of the first floor, which could be lowered from the inside if necessary. There is a second floor, accessible only from the inside through a staircase with stone steps.