I beat this right before the anniversary episode, which aired the exact day it started, the few levels though. Those were hard. That Dalek ship and Weeping Angel in the graveyard. The Cybermen at London Bridge is easy.
Eugène Viollet-le-Duc's Birthday --- Eugène Emmanuel Viollet-le-Duc was a French architect and theorist, famous for his interpretive "restorations" of medieval buildings. Born in Paris, he was a major Gothic Revival architect.