The city of Zug, well-known for its low taxes and because it is the seat of numerous companies, was founded by the Kyburgers. Zyt Tower, which offers a magnificent view of the Old Town, the Zug Mountain and Lake Zug, is the city's landmark.

The Counts of Kyburg are said to have founded the city at the beginning of the 13th century. The 52-meter-high Zyt Tower dates back to the same era. It was first built as a simple wall entrance to the Old Town and in the course of the centuries it was built higher and received additional structures, until it finally reached its present form, complete with bay windows and a steep hipped roof. In 1574 the large clock was built, which gives the tower its name. Below this main clock there is an astronomical clock with four hands, which indicate the week, the phase of the moon, the month and the leap year.

The Late Gothic town hall, built in 1505, and the church of St. Oswald, which belongs to the same epoch, are located in the Old Town itself.