La Casa de Fierro (archaism, English: the Iron House, French: La Maison de Fer), located in the city of Iquitos in the jungle of Peru, in front of the major square between Próspero and Putumayo streets, is a large iron residence built during the rubber boom at the end of the nineteenth century. La Casa de Fierro is one of the finest as well as best-preserved samples of civil architecture in Peru. The walls, ceiling, and balcony are plastered in rectangular sheets of iron.