Top 20 Castles in St. Gallen
Castles in St. Gallen, a canton in eastern Switzerland, reflect a rich history. The region features numerous castles and ruins, ranging from well-preserved historical monuments to picturesque ruins with compelling stories. St. Gallen's diverse landscape, including Lake Zurich and Lake Constance, provides scenic backdrops for these historical sites. Many castles offer insights into the region's past and strategic importance.
Best castles in St. Gallen
- The most popular castles is Grimmenstein Castle Ruins, a castle that offers wonderful views of Lake Constance and the surrounding region. Visitors can enjoy a pleasant climb through the forest to reach the ruins.
- Another must-see spot is View of Rapperswil's Old Town and Castle, a viewpoint offering views of Lake Zurich and the Alps. This location allows visitors to explore the old town and the castle's imposing walls.
- Visitors also love Helfenberg Castle Ruins, a historical site that was probably built in the first half of the 13th century. The ruins are located near the Glatt gorge and are secured and preserved.
- St. Gallen is known for well-preserved hill castles, medieval fortresses, and castle ruins. The region offers a variety of castles to see and explore, from those housing museums to those transformed into hotels.
- The castles in St. Gallen are appreciated by the komoot community. The community has contributed more than 1300 upvotes and 220 photos to these locations.
Last updated: April 24, 2026
View of Rapperswil's Old Town and Castle
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Werdenberg — Old Town, Castle and Lake
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Werdenberg is a town with historical town charter in the eastern Swiss canton of St. Gallen. The town of Werdenberg belongs to the municipality of Grabs and is located 0.5 km west of Buchs. It boasts of being the smallest town in Switzerland with around 55-60 residents. Of the around 40 houses, some only serve as holiday homes. Werdenberg is often visited by tourists because of its very well-preserved medieval houses and the museum in Werdenberg Castle. The Werdenberg Castle Festival has been taking place in Werdenberg Castle since 1985.[
The county of Werdenberg included the castle and town of Werdenberg of the same name, the villages of Grabs, Buchs and Sevelen as well as jurisdiction over the Wartau domain (Wartau Castle and village of Gretschins). The noble family of the Counts of Werdenberg split into several side lines in 1277. The actual county of Werdenberg remained with the line of the Counts of Werdenberg-Heiligenberg.
In 1402 they pledged the County of Werdenberg to the Counts of Montfort-Tettnang, from whom it passed to the Counts of Sax-Misox in 1483. In 1485 the city of Lucerne acquired the county and passed it on to the Barons of Kastelwart in 1493. However, the county remained connected to the Confederation through a castle law with Lucerne, even when the county changed hands again to the Barons of Hewen in 1498. Werdenberg also fought on the side of the Confederates in the Swabian War. In 1517 the Barons of Hewen sold Werdenberg to the canton of Glarus for 21,500 guilders.
Glarus administered Werdenberg very strictly as a bailiwick - the Glarus lords were anything but popular in the Rhine Valley. Because of the confusing legal situation between the counties of Werdenberg and Sargans in the Wartau rule, there were repeated disputes between the bailiffs, which in the “Wartau trade” of 1694/95 were brought up to the federal parliament.
With the fall of the old Confederation and the founding of the Helvetic Republic in 1798, Werdenberg became part of the canton of Linth. When this was dissolved again with the mediation constitution of 1803, Werdenberg became part of the canton of St. Gallen.
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Sargans Castle
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The Sarganserschloss was first read in a document as early as 1282. In 1386 its owner, Count Johann I (called "Count Hans" for short) fought on the side of Austria near Sempach against the Confederates. Two years later he planned to take part in the battle against the Glarus people at Näfels, but luckily he did not appear with his people on the Kerenzerberg until the meeting had already been decided.
After the Old Zurich War, Sargans became subject to the Confederates. From then on (from 1459 to 1798) they administered this property as a common rule. 181 bailiffs replaced each other one after the other in the Sarganserschloss (each after a two-year term of office). The order of their appearance can still be read on the coat of arms that adorns the city side of the mansion: Zurich, Lucerne, Uri, Schwyz, Obwalden, Nidwalden, Zug and Glarus. (After the Villmerger Wars, from 1712, also Bern.)
The castle has belonged to the local community of Sargans since 1899. Architect Eugen Probst renovated it sensibly at the turn of the century. In 1969/70 the facade, the ring walls and the retaining walls were subjected to another renovation with the help of Heimatschutz and the federal government and the canton of St. Gallen. A visit to the old manor house and the Sarganserländisches Heimatmuseum in the tower are worthwhile!
Text: Pedagogical Publishing House LLZ
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St. Anna Castle
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Grimmenstein Castle Ruins
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Helfenberg Castle Ruins
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The castle was probably built in the first half of the 13th century. It was a residence of the Gielen von Glattbrugg family. In 1244, the castle was part of the foundation of the knight Rudolf Giel von Glattbrugg for the Magdenau monastery. The family continued to manage the castle - probably as a fief - and in 1341 the castle was rebuilt by the family. For knight Rudolf II Giel von Glattbrugg in 1244, who had founded the Magdenau monastery, the estate on which the previous building, the "castrum Helfinberc", had once stood, was part of his foundation. The castle was apparently already dilapidated at that time.
From then on, the imperial monastery had servants manage Helfenberg. By 1388 at the latest, the Princely Abbey of St. Gallen was the owner of the castle complex. In 1401 it was besieged by the surrounding farmers, which ultimately led to the Appenzell Wars, in which the castle was completely destroyed in 1407. The complex fell into disrepair and then largely slid into the Glatt ravine. This was their last act after the Appenzell Wars. The castle complex, destroyed by the rebellious farmers, was then left to decay.
The first excavations were carried out between 1935 and 1937. In 1939 the ruins came into the possession of the Oberberg cooperative in Gossau. Since 1964/1965 the ruins have been secured and preserved to their current state. The ruins are located not far from the Glatt gorge and not far from the Kolumbanshöhle. Access is only recommended on foot and with hiking equipment.
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de.wikipedia.org/wiki/Burg_Helfenberg_(St._Gallen)
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Stralegg Castle Ruins (Roman Watchtower)
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Wartensee Castle
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Grünenstein Castle
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Steinerburg Ruins
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Tips from the Community
The historic Wartensee Castle, dating from the 13th century, is located on the Rorschacherberg hill. It also features a historic chapel, and the castle itself houses a Gothic hall. From the beautiful garden terrace, one has a breathtaking panoramic view of Lake Constance.
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Sargans Castle is definitely worth a visit!
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In front of the ruins there is a small but nice barbecue area.
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Above Steinch on the edge of the forest with a large barbecue area and beautiful views over Lake Constance
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Beautiful ruin above Lake Walen.
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Old castle ruin. There is a picnic area with possibility to make a fire. View of the lake and the mountains.
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Beautiful shady resting place between ruins, forest and stream.
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Frequently Asked Questions
Which castles in St. Gallen offer a deep dive into the region's history?
For a significant historical experience, visit Werdenberg Castle, a well-preserved hill castle dating back to 1228, which houses a museum exploring the region's past. Another excellent choice is Sargans Castle, built around 1200, which played a crucial role in controlling passes and features the Sarganserländisches Heimatmuseum.
Are there any castles in St. Gallen that offer scenic views?
Absolutely. Rapperswil Castle, perched on Lindenhof hill, offers commanding views of Lake Zurich and the Alps. The Grimmenstein Castle Ruins also provide wonderful views of Lake Constance and the surrounding region after a pleasant climb through the forest.
Which castles in St. Gallen are suitable for families with children?
Many castles in St. Gallen are family-friendly. Werdenberg Castle is part of Switzerland's smallest town with historical city rights, offering a charming medieval experience. The Grimmenstein Castle Ruins are noted for having two barbecue areas, making it a great spot for a family outing. Sargans Castle also welcomes families and has a restaurant on site.
Can I find castles in St. Gallen that have been converted into hotels or unique accommodations?
Yes, the region offers unique castle stays. Schloss Wartegg in Rorschacherberg, built in 1557, is now a sustainable eco-hotel with an English landscape park. Wartensee Castle, also in Rorschacherberg, operates as a hotel and event venue with neo-Gothic architecture. Schloss Weinstein in Marbach provides a romantic hotel stay with a restaurant.
What kind of outdoor activities can I do near the castles in St. Gallen?
The St. Gallen region offers diverse outdoor activities. You can find easy hikes, such as the Pizol panoramic high-altitude trail, or more challenging mountain hikes like the Wildsee – Schotten Lake loop. Cycling routes are also popular, including tours from Rapperswil or along Lake Constance. For more details on routes, explore the Easy hikes in St. Gallen, Mountain Hikes in St. Gallen, and Cycling in St. Gallen guides.
Are there any castle ruins in St. Gallen worth exploring?
Certainly. The Grimmenstein Castle Ruins are highly popular, offering great views. Helfenberg Castle Ruins, probably built in the 13th century, are secured and preserved near the Glatt gorge. The Stralegg Castle Ruins, believed to be a Roman watchtower, also provide historical interest and views.
What is the best time of year to visit the castles in St. Gallen?
The castles in St. Gallen are generally enjoyable from spring through autumn, when the weather is mild for exploring ruins and enjoying outdoor activities. Summer offers the warmest temperatures for lake views and outdoor dining. Some castle hotels, like Schloss Wartegg, are open year-round, offering a cozy experience even in winter.
Are there any castles in St. Gallen that are easily accessible by public transport?
Many castles in St. Gallen are well-connected. Rapperswil Castle is located in the town of Rapperswil-Jona, which is easily accessible by train and boat. Sargans Castle is also close to the town of Sargans, a transport hub. For specific routes and schedules, it's best to check local public transport websites.
What do visitors enjoy most about the castles in St. Gallen?
Visitors frequently highlight the stunning views, especially from locations like Grimmenstein Castle Ruins and Rapperswil Castle. The historical significance and the opportunity to explore well-preserved medieval structures or charming old towns, such as Werdenberg, are also highly appreciated. Many enjoy the combination of history with beautiful natural surroundings.
Are there any castles in St. Gallen with unique architectural features?
Yes, Rapperswil Castle stands out with its three prominent towers: the Gügeliturm, the five-sided Zeitturm with bells and a sundial, and the Pulverturm. Wartensee Castle, while having roots in the 13th century, was renovated in the 19th century, acquiring its distinctive neo-Gothic style.
Can I find cafes or restaurants near the castles in St. Gallen?
Several castles offer dining options. Sargans Castle has a restaurant open from March to December. Schloss Wartegg, now an eco-hotel, features an exquisite organic restaurant. Wartensee Castle also operates as a hotel and event venue with dining facilities. Many castles are located near towns with various cafes and eateries.
Are there any lesser-known or 'hidden gem' castles in the St. Gallen region?
While not as widely known as the major fortresses, the Grünenstein Castle, a private castle on a vineyard, offers a unique blend of history and culture, with apartments and cultural events. The Steinerburg Ruins also provide a peaceful, less crowded exploration opportunity with good views.
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