page_title: Houdan
section_title: Attractions
hierarchical_section_title: Houdan / Attractions
caption_attribution_description: Français&#160;: Donjon de Houdan (Yvelines, France) Deutsch: Wachtturm von Houdan (Yvelines, France) English: Keep tower of Houdan (Yvelines, France) Italiano: Mastio di Houdan (Yvelines, France)
context_page_description: Houdan is a commune in the Yvelines department in the Île-de-France region in north-central France.
context_section_description: Vestiges of the old town wall fortifications, including a keep built around 1135.
  Houses of the 15th and 16th centuries.
  Church, 15th - 17th centuries, Gothic style containing an organ (1735), and a Renaissance-style choir.
caption: The keep
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