Volume 5 of 9, covering Dais to Fourches. According to Wikipedia: "Eugène Emmanuel Viollet-le-Duc (27 January 1814 17 September 1879) was a French architect and theorist, famous for his interpretive "restorations" of medieval buildings. Born in Paris, he was a major Gothic Revival architect. He was the architect hired to design the internal structure of the Statue of Liberty."