The keep of dourdan
The massive keep of the castle of Dourdan. It was built apart from the rest of the castle and had a bridge leading to it that could probably be destoyed in case of attack. This tower is 30 m (90 feet) high and 13 m (39 feet) in diameter. It is possible to climb to its top where you can have a good view of the surrounding town.
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Photo from: <a href="http://www.france-in-photos.com/">France in Photos</a>