Is Hohentwiel the largest castle ruin in Germany?

Yes, covering nine hectares open to visitors, it is regarded as the largest castle ruin in Germany accessible to the public.

Where is the Festung Hohentwiel located?

It stands in Singen (Hohentwiel), in the Landkreis Konstanz, in Baden-Württemberg, atop an extinct volcano in the Hegau region.

Why is the fortress in ruins?

It was demolished in 1801 during the War of the Second Coalition, after having served as a Württemberg state fortress and later as a prison.

What can visitors see there today?

Visitors can explore extensive open-air fortified ruins and enjoy views over the volcanic Hegau landscape.

Festung Hohentwiel

Hohentwiel Castle

Singen (Hohentwiel)

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Tickets and prices

Adult: €5
Reduced: €2.50

Prices and tickets on the château’s website

Where: Singen (Hohentwiel)

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To make a day of it

Open within 20 km

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Festung Hohentwiel stands in Singen (Hohentwiel) (Landkreis Konstanz), in Baden-Württemberg, Germany. Adult admission costs 5 EUR. Its opening hours and prices have not been verified at the source yet.

The Festung Hohentwiel sits atop an extinct volcano rising 260 meters above the town of Singen, in the Hegau region near Lake Constance. Covering nine hectares, it is the largest castle ruin in Germany open to visitors. Once an early medieval ducal seat and later a Württemberg state fortress that withstood five sieges during the Thirty Years' War, it was demolished in 1801 during the War of the Second Coalition. Visitors today walk through extensive fortified ruins with wide views over the Hegau's volcanic hills.

Written from Hohentwiel Castle

What to know

The fortress covers nine hectares on a hilltop, so reaching it involves a steep uphill walk from the base of the mountain.
The visit takes place outdoors among ruins, with no furnished rooms or interior displays.
An annual music festival takes place within the fortress grounds, which may affect access during that period.
The uneven, hilly terrain makes the site difficult for visitors with limited mobility.

Practical information

Opening hours

1. April bis 15. Oktober: Mo-So, Feiertag 09:30-18:30 Uhr (letzter Kartenverkauf 17:00 Uhr, letzter Einlass 17:30 Uhr)
16. Oktober bis 31. März: Sa, So, Feiertag 10:00-16:00 Uhr (letzter Kartenverkauf 14:30 Uhr, letzter Einlass 15:00 Uhr), Mo-Fr geschlossen

Annual closures : October 16 to March 31: closed Monday to Friday

Prices

Adult: €5
Reduced: €2.50

Visit duration: Not verified
Wheelchair access: Not verified
Dogs: Not verified
Parking: Not verified

Where this château is

Singen (Hohentwiel) · Landkreis Konstanz · Baden-Württemberg

Map of the area around Festung Hohentwiel

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This châteauChâteaux within 40 km

Address

Hohentwiel 2A, 78224 Singen (Hohentwiel)

Directions open from wherever you are, by car or public transport.

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Château phone number

+49 7731 69178

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The safest check before setting off: today’s hours, guided-tour availability, where to park.

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Heritage status: Protection status unknown

In pictures

Frequently asked

Festung Hohentwiel: how much is admission?: Adult admission is €5. Reduced: €2.50.
Is Hohentwiel the largest castle ruin in Germany?: Yes, covering nine hectares open to visitors, it is regarded as the largest castle ruin in Germany accessible to the public.
Where is the Festung Hohentwiel located?: It stands in Singen (Hohentwiel), in the Landkreis Konstanz, in Baden-Württemberg, atop an extinct volcano in the Hegau region.
Why is the fortress in ruins?: It was demolished in 1801 during the War of the Second Coalition, after having served as a Württemberg state fortress and later as a prison.
What can visitors see there today?: Visitors can explore extensive open-air fortified ruins and enjoy views over the volcanic Hegau landscape.