Site of Fort Duquesne, Pittsburgh, USA

Fort Duquesne - originally called Fort Du Quesne - was established by the French in 1754, at the confluence of the Allegheny and Monongahela rivers. It was later taken over by the English, and later Americans, and developed as Pittsburgh in the U.S. state of Pennsylvania. The premises of the fort was destroyed by the French, prior to English conquest during the Seven Years' War, known as the French and Indian War on the North American front. The latter replaced it, building Fort Pitt.