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Achalm Castle today

Germany · Ruin

Achalm Castle

Ruine Achalm

Achalm Castle is an 11th-century hilltop castle ruin above the towns of Reutlingen and Pfullingen in Baden-Württemberg, Germany. Built around 1030 and expanded with a second tower in the 11th century, the site was partially slighted in 1650 and later capped by a 19th‑century stone lookout tower on the old foundation.

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Photograph via Wikimedia Commons

Its prime

1200

Today

Ruin

As it stood in 1200

What Achalm Castle looked like in its prime.

Perched on a wooded crag at the edge of the Swabian Alb, the castle in its prime presents two prominent stone towers rising from a compact ensemble of masonry atop the hill, linked by continuous curtain walls and enclosing a central courtyard. The masonry is weathered pale stone; the roofs of halls sit within the wall circuit and crenellations line the parapets. From the hill the fortified silhouette dominates the valley and the towns of Reutlingen and Pfullingen below.

Its story

The story of Achalm Castle.

Achalm Castle was built around 1030 on a hilltop at the edge of the Swabian Alb, above the towns of Reutlingen and Pfullingen, and gained a second tower in the 11th century. The von Achalm family died out shortly afterwards, and the castle passed through several owners, including the House of Welf.

After the Emperor's victory over his son Henry VII, Achalm became the personal property of the House of Hohenstaufen, and later passed into the control of the House of Württemberg, in 1377 Count Ulrich of Württemberg marched from the castle to attack the town of Reutlingen. Partially slighted in 1650, the ruin was capped in 1838 by a stone lookout tower raised on the old foundation.

Step inside

6 places to explore in 1200.

The record describes 6 distinct spots at Achalm Castle, including 1 interior: dungeon interior. Create your own photoreal reconstruction and explore every one, more scenes means more rooms, more angles, and more of the place to stand in.

Approach from the townPrincipal tower (exterior)Secondary tower and connecting curtain wallsCentral courtyard (bailey)Dungeon interiorWall-walk and battlements

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Recreate Achalm Castle with AI to explore it.

The artist rebuilds it as it stood in 1200, a photoreal reconstruction that belongs to you alone. Pay with coins, no subscription needed.

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Whose castle

Clans who held Achalm Castle.

The families that held Achalm Castle for a decade or more across its history, follow a name to its clan.

  • Welf

    The castle passed through the hands of the House of Welf.

  • Hohenstaufen

    Personal property of the House of Hohenstaufen after the Emperor's victory over Henry VII.

  • Württemberg

    Passed into the control of the House of Württemberg; Count Ulrich marched from the castle against Reutlingen in 1377.

Nearby

Landmarks within reach of Achalm Castle.

MHPArena, GermanyStadiumMHPArena33 km away

Questions about Achalm Castle

What is the history of Achalm Castle?

Achalm Castle was built in the 11th century as a hilltop stronghold on the edge of the Swabian Alb. It was founded around 1030 by Gaugraf Egino and Rudolf of Achalm, with the upper castle’s enclosing wall forming part of the original construction. A lower castle was added later in the 11th century, and the bergfried probably dates from the 12th century.

What is inside Achalm Castle?

Inside Achalm Castle, the surviving spaces include a dungeon, a central courtyard and the remains of the upper and lower castle. The approach leads through the former gate area and into the bailey, while sections of the enclosing walls and the wall-walk survive. The lookout tower stands on the old bergfried foundations and has an internal steel staircase to its viewing platform.

Why was Achalm Castle built, and what was it used for?

Achalm Castle was built as a fortified hilltop residence and defensive stronghold. Its isolated summit was considered suitable from both a representative and a defensive standpoint, and the entire summit was incorporated into the castle. Its military value declined over the following centuries, and parts were demolished in 1650 and 1658 to prevent enemy forces using it for shelter.

Where is Achalm Castle?

Achalm Castle is above Reutlingen and Pfullingen in Baden-Württemberg, on the summit of the Achalm at the edge of the Swabian Alb. The hill is the Hausberg of the city of Reutlingen, and the castle is located in the administrative area of Reutlingen.

When was Achalm Castle built?

Achalm Castle was built in the 11th century, with its first construction dating to around 1030 or to the period between 1030 and 1050. The castle developed in several phases: the upper castle’s enclosing wall belonged to the foundation, the lower castle was added in the 11th century, and the bergfried probably followed in the 12th century.

Which family or clan held Achalm Castle?

Achalm Castle was held by the House of Welf, the House of Hohenstaufen and the House of Württemberg. It passed through the hands of the Welfs, became personal property of the House of Hohenstaufen after the Emperor’s victory over Henry VII, and later came under Württemberg control.

What did Achalm Castle look like in its prime?

In its prime, Achalm Castle presented two prominent pale-stone towers rising from a compact masonry ensemble on the wooded hilltop. Continuous curtain walls linked the towers and enclosed a central courtyard, while halls with roofs inside the wall circuit and crenellated parapets formed the fortified silhouette above Reutlingen and Pfullingen.

Is Achalm Castle still standing or is it a ruin?

Achalm Castle is a ruin, although substantial masonry survives. The original castle was partially slighted in 1650 and finally demolished in 1650 and 1658, with towers and walls removed and the cistern filled. A stone lookout tower was built on the old bergfried foundations in 1822 or 1838 and was renovated in 1932; the tower is now accessible again.

Can you visit Achalm Castle?

Yes, Achalm Castle can be visited as a ruin, and the lookout tower is accessible again. The site can be reached by car to the Scheibengipfel walking car park, while marked footpaths and the Burgenwanderweg Neckar-Donau pass over the ruin. The tower was made inaccessible after damage in 2017 but has since reopened.

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