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Switzerland
Eastern Switzerland
St. Gallen
Wahlkreis Rheintal

Widnau

Top 20 Castles around Widnau

Best castles around Widnau are found in the surrounding St. Gallen Rhine Valley region of Switzerland, which offers a rich historical landscape. This area is characterized by its proximity to the Rhine Delta and Lake Constance, providing scenic views and diverse terrain. The region features a collection of historical castles and ruins, reflecting centuries of local heritage.

Best castles around Widnau

  • The most popular castles is Grimmenstein Castle Ruins, a castle ruin situated high above the Rhine Delta and…

Last updated: June 17, 2026

Alt-Ems Castle Ruins

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It is the longest medieval castle in Austria and is a true highlight at 740m above sea level. The view over the Rhine Valley and the remains of the castle are a true reward for the ascent.

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Grimmenstein Castle Ruins

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After a pleasant, cool climb through the forest you reach the Burghalde with the Grimmenstein castle ruins. A wonderful view opens up of Lake Constance and the three neighboring states.

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Grünenstein Castle

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Private castle on a vineyard, easily accessible via road and hiking trail.

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Weinstein Castle

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A small fairytale castle that now houses a romantic restaurant.

More information can be found at schloss-weinstein.ch.

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Very nice hike to see a lot

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Mattia Pastore
March 1, 2024, Schloss Weinstein

Weinstein Castle, first mentioned in documents in the 14th century, is beautifully located in the vineyards of Marbach. You can eat, drink and even get married in the castle.

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Small hidden treasure, unfortunately all privately owned

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Very beautiful ruins, high above the Rhine Delta and Lake Constance. Above there is a nice viewing point and rest area with tables and benches.

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After a pleasant, cool climb through the forest you reach the Burghalde with the Grimmenstein castle ruins. A wonderful view opens up of Lake Constance and the three neighboring states.

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Access to the ruins is currently completely blocked (3.23).

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The ruin is fenced in and cannot be entered

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Grimmenstein ruins, good place for a break.

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After permission for the construction of the castle by Emperor Ludwig the Bavarian in 1343, the Neu-Ems castle was built by the knight Ulrich I von Ems for his family. 1401 saw the first documentary mention of Glopper Castle, as the castle is also called in the vernacular. Neu-Ems was destroyed in 1407 in the same year as Alt-Ems Castle in the Appenzell Wars, but it was immediately rebuilt at the beginning of the 15th century. After the death of the last Hohenems Count Franz Wilhelm III. Glopper Castle came to the Imperial House of Habsburg-Lorraine in 1765/67 as an accessory of the Imperial County of Hohenems. Source: https://www.vorarlberg.travel/poi/hohenems-burg-neu-emsschloss-glopper/

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Frequently Asked Questions

What types of castles and ruins can I explore around Widnau?

The region around Widnau offers a diverse range of historical sites, from well-preserved medieval castles and Renaissance stately homes to impressive castle ruins. You can find sites like the panoramic Grimmenstein Castle Ruins, the historically significant Alt-Ems Castle Ruins, and the charming Jonas-Schlössle, which is a Renaissance-era stately home.

Are there any castles near Widnau that offer panoramic views?

Yes, Grimmenstein Castle Ruins are situated high above the Rhine Delta and Lake Constance, providing wonderful panoramic views of the lake and the surrounding three states. There's an observation deck and rest area available at the site.

Which castles are particularly interesting for history enthusiasts?

History enthusiasts will appreciate Alt-Ems Castle Ruins, known as the longest medieval castle in Austria, offering a glimpse into the region's past. Also, Jonas-Schlössle in Götzis is a unique example of a Renaissance mansion with a magnificent wooden ceiling and wall paneling from the 16th century. Werdenberg Castle, though not a highlight in the guide, is a well-preserved medieval castle with a museum, located in the charming smallest town in Switzerland.

Are there family-friendly castles or activities near Widnau?

Yes, Grimmenstein Castle Ruins are considered family-friendly, offering a pleasant forest climb and a rest area with tables and benches. It's a great spot for a family outing. The Jonas-Schlössle also hosts various cultural events that can be enjoyed by families.

Can I combine a castle visit with hiking or other outdoor activities?

Absolutely. Many castles, like Grimmenstein Castle Ruins and Alt-Ems Castle Ruins, are reached via pleasant walks or ascents through forests, making them ideal for combining with hiking. For more hiking options in the area, you can explore routes in the Hiking around Widnau guide.

Are there any castles that are privately owned and not accessible to the public?

Yes, Glopper Castle (Neu‑Ems Castle) is privately owned and not accessible to the public, though it remains an impressive historical landmark. Similarly, Grünenstein Castle is a private castle on a vineyard, but it does host cultural events and has apartments available.

What is the best time of year to visit the castles around Widnau?

The castles and ruins around Widnau can be visited year-round, but spring and autumn offer particularly pleasant conditions for exploring, with mild weather and beautiful natural scenery. The forest climbs to sites like Grimmenstein Castle Ruins are especially enjoyable in cooler temperatures.

Are there any castles that also serve as cultural venues?

Yes, the Jonas-Schlössle in Götzis now serves as a venue for various cultural events, including readings, chamber concerts, exhibitions, seminars, and conferences. Grünenstein Castle also hosts cultural events, weddings, and celebrations.

What should I wear when visiting castles and ruins in the Widnau area?

Given that many castle sites involve walking or hiking, especially to ruins like Grimmenstein or Alt-Ems, comfortable walking shoes are highly recommended. Layers of clothing are also advisable to adapt to changing weather conditions, particularly if you plan to spend time outdoors enjoying viewpoints.

Are there any castle ruins recognized as significant heritage sites?

Yes, Wartenstein Castle, located in Pfäfers, is a ruin built around 1206 and is recognized as a Swiss heritage site of national significance. While not a highlight in this guide, it offers a glimpse into early medieval architecture and is a notable historical point of interest in the Canton of St. Gallen.

What do visitors enjoy most about the castles around Widnau?

Visitors frequently praise the stunning panoramic views, especially from sites like Grimmenstein Castle Ruins and Alt-Ems Castle Ruins. The historical significance and the opportunity to combine castle visits with pleasant walks through nature are also highly appreciated.

Are there any castles that have been converted into hotels or event venues?

Wartensee Castle, located on a hill above Lake Constance, has been renovated into a hotel and event venue. This allows visitors to experience a historical setting with modern amenities and enjoy views of Lake Constance. Grünenstein Castle also offers apartments and hosts events.

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Looking for the best castles somewhere else? Discover other guides around Widnau:

St. MargrethenAltstättenOberrietAu (SG)Rüthi (SG)RebsteinBerneckBalgachRheineckDiepoldsauEichberg

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