Heidelberg Castle, here shown in a painting by Carl Blechen, was destroyed by the French during the war of succession of the Electorate of the Palatinate. (Source)
View from the so-called "Philosophers' Walk" (German: Philosophenweg) towards the Old Town, with Heidelberg Castle, Heiliggeist Church and the Old Bridge (Source)
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From left: Jesuit Church, Providence Church and Church of the Holy Spirit in Heidelberg's Old Town on the Neckar River (Source)