Palazzo Sormani is present in the catalogue of Italian Villas. Its origin dates back to the Middle Ages. In cadastral maps prior to 1570 it had a quadrilateral plan divided into two bodies communicating with two porticoes and with numerous basements, covered passages and stables of the palace in the alley to the north of the complex. The complex as a whole and its fine workmanship make it one of the most prestigious buildings, owned by the Andrians until the end of the 18th century, then passed to the Sormani family. Located in the center of Cologno, it is accessed from Piazza Mentana through a splendid entrance arch. In the Palace, wooden ceilings and a biblical episode "Joseph sold by the brothers" located in the crown band. Muzio Scevola is painted above a fireplace. The Scaliger and Visconti coats of arms are recognisable in the loggia. In the residence there was an "oratory" existing until 1803, dedicated to the Blessed Virgin Immaculate, whose altarpiece was transferred to the old parish church.