The city of St. Gallen owes its existence to the choice of the Irish monk Gallus, who settled here in 613. The abbey founded here, rebuilt in the 18th century, has been added to the Unesco List. The cathedral's vast nave, the paintings on the vault, and the lavish rood screen make a stunning impression. The old town itself is also full of charm, and I especially enjoyed the houses with the bay windows characteristic of St. Gallen.