Just a little northward from the main church, lays the so called "Trullo Sovrano". Inside you can find a museum that shows how the everyday life into a trullo was used to be. It was built around the 1797 by the wealthy family of the priest Cataldo Perta. This is the highest level of the trullo's building technique, in facts, even if has been built following the building rules imposed by the Count Giangirolamo Acquaviva, this is the only trullo built with two livable floors. With his 14 meters high roof, it has the peculiarity of a pediment elevated to the 2nd floor, reachable through a stairway cleverly build into one of the main walls. National monument since 1923, was formerly used as seminary, where were kept the relics of the saints before the building of the current Sanctuary.