Donjon de Houdan, Medieval keep in Houdan, France
The cylindrical stone tower rises 25 meters high with four corner turrets positioned at cardinal points and walls measuring three meters thick.
Built between 1120 and 1137 by Amaury III of Montfort, this defensive structure remained unconquered throughout its entire military service period.
The tower displays 17th-century graffiti on its walls and stands on the location of an ancient Merovingian burial ground from the early medieval period.
Visitors can climb 250 steps to reach the panoramic terrace, which provides views extending to 36 municipalities within the Pays Houdanais Community.
The structure transformed into a water reservoir in 1880 when authorities installed a 200-kiloliter tank inside the medieval military architecture.
Location: Houdan
Inception: 1105
Height: 25 m
GPS coordinates: 48.78931,1.59875
Latest update: June 23, 2025 09:46
The Ile-de-France region includes castles, museums and gardens outside Paris. These locations display regional history through medieval fortresses, art galleries, botanical gardens and manor houses. The structures represent architectural styles from the 12th to 20th century.
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