Notre Dames

Daniel Stoeffler built two different French Notre Dames: Notre Dame de Paris and Notre Dame de Strasbourg. The cathedral in Paris was built from 1160 to 1345 on the Île de la Cité, an island in the Seine. The cathedral in Strasbourg was built from 1176 to 1439, though the originally planned south tower was never built, so I suppose you could argue it is still under construction. .