Founded in the 9th century, the church is dedicated to San Satiro, the brother of Sant'Ambrogio (the patron saint of Milan). From the outside there’s nothing remarkable to note but inside you will discover a masterful act of visual deception.
Due to the small plot this renaissance church lies within, the space behind the altar was insufficient, making the church exceptionally short. Undeterred by this obstacle the architect Donato Bramante had to find a creative solution to give the impression that the apse was much larger than it was. He did this using skilled techniques and meticulously crafted mouldings to create a fake choir. To the ordinary eye you would never guess the apse was fabricated, the trick is only revealed as you draw closer and stand to the side of the altar.