Located in the heart of the Bernese Mittelland on the Aare River in northern Switzerland, Bern is Switzerland's captial and home to some of the most impressive examples of medieval town architecture found anywhere in Europe. It was named a World Heritage Site by UNESCO in 1983 and is often referred to as the “City of Fountains" for the more than 100 fountains that grace its streets and squares. Eleven, dating back to the 16th century, are particularly impressive. They depict a range of historical figures and are routinely repainted to preserve their original appearance. Other landmarks include the city clock tower, whose whimsical figurines dance on the hour, and a bear park, which celebrates Bern's symbol, the bear.