Zytglogge is a historic clock tower located in the city of Bern, Switzerland. It was originally built in the early 13th century as a fortified gate, but was later converted into a clock tower in the 15th century. The tower is known for its intricate astronomical clock, which features a variety of moving figurines and symbols that represent the passing of time. The clock tower also has a bell that chimes every hour, and visitors can climb to the top of the tower for panoramic views of the city. Zytglogge is considered one of the most recognizable landmarks in Bern, and it is a popular tourist attraction.