
Germany · Ruin
Achalm Castle
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.
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 walk through every one — more scenes means more rooms, more angles, and more of the place to stand in.
Create History
Recreate Achalm Castle with AI to explore it.
The artist rebuilds it as it stood in 1200 — a photoreal walk that belongs to you alone. Pay with coins, no subscription needed.
Recreate this castle →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.


