The old town started in the 12th century when the castle was built, and was later extended to today's upper Hauptgasse. The raised sidewalks. The beautiful city of Thun (around 45,000 inhabitants) is located in an idyllic setting at the lower end of Lake Thun. Stunning views of the mountains Eiger, Mönch, and Jungfau. Thun is considered a gateway to the Bernese Oberland and an ideal starting point for a variety of adventures, including hikes through the unique mountain world, exciting excursions into the Gantrisch Nature Park, a romantic sunset cruise on Lake Thun, and much more. At the beginning of the 19th century when tourism emerged in the Bernese Oberland, Thun developed into a popular tourist place by constructing hotels in all price categories and offering a wide selection of bed & breakfasts, apartments, rooms, and private accommodations. Not only is Thun a beautiful location, it is also as a great setting for cultural events, such as the Thuner Seefestspiele (open-air musical) and the Schlosskonzert (concerts in the castle), which annually attract enthusiastic visitors from near and far. Special attractions include the picturesque old town, numerous cafes, and shops of all kinds encouraging visitors to stroll and linger. The old town started in the 12th century when the castle was built, and was later extended to today's upper Hauptgasse. The raised sidewalks which characterize the upper part of the Hauptgasse, are an architectural feature and unique in Europe. Overlooking the city’s narrow alleys and historic buildings is the imposing castle, the landmark of Thun. Built by the Dukes of Zähringen between 1180 and 1190, it was acquired in 1218 by the Earls of Kyburg, who added today's upper floor. The magnificent Rittersall (Knights' Hall) in the castle tower has been largely preserved in its original state and is considered one of the most impressive medieval rooms of Switzerland suitable for suitable for state events, and it can be rented for private functions. The roof and the towers date from the 15th century, when the castle was used as the Bernese government headquarters. The five halls of the tower house the castle’s cultural and historical museum, which gives visitors a fascinating journey into the past.