The largest art foundry in Europe, GHM in Sommevoire (Haute-Marne), specialises in cast iron. It produces complete ranges of urban furniture and lighting, regularly calling on major designers such as Jean-Michel Wilmotte or Marc Aurel. In the past, renowned artists such as Auguste Bartholdi, Hector Guimard, Emmanuel Frémiet, or Pierre Louis Rouillard had works made in Sommevoire, which can still be admired in Paris, London, Washington, Edinburgh, or New York.