While Bydgoszcz's main square is pretty standard my most measures, if take up a spot in front of house no. 17 at 13:13 or 21:13, things get weird pretty quick. Twice a day, a small window at the top of the building opens to unveil the legendary Polish sorcerer Pan Twardowski (who supposedly sold his soul to the devil in exchange for magical powers) making a jerky appearance accompanied by evil laughter. This strange animatronic display, created by sculptor Jerzy Kędziora (also responsible for the Man Crossing the River sculpture) and a couple engineers, is meant to commemorate Twardowski’s three-month stay in Bydgoszcz in 1560.