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.

[1] Although popularly said to have been designed by the French architect Gustave Eiffel, there is no evidence at all that this is true; the building does not reflect his architectural style.

[2] Since 2011 well substantiated claims prove it was built in the Belgian workshops of Les Forges d'Aiseau (Joseph Danly process).

[4] Once dismantled, it was brought in pieces to Iquitos (the metal sheets were carried by hundreds of men through the jungle), and assembled there in 1890.

A fully different story of the origin of the house is told in Mario Vargas Llosa's Captain Pantoja and the Special Service (Pantaleón y las visitadoras), a comic novel.