What Can This 300 Year Old French Fortress Tell Us About Green Architecture?

Photo: GIPE under a Creative Commons license.

These days it seems that every new building is being billed as green: LEED certifications and new technologies that limit the environmental impact of lighting, water use, heating and air conditioning abound. But on a trip last weekend to Besançon, in eastern France, I visited a building that isn't LEED certified or equipped with any fancy technology, but that nonetheless showcases important principles of green architecture. The building: the Citadel of Besançon. The architect: Sébastien Le Prestre de Vauban. The client: King Louis XIV of France.

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