Heidelberg is a town on the Neckar River in southwestern Germany. It’s known for venerable Heidelberg University, founded in the 14th century. Gothic sanctuary church towers over the cafe-lined Market Square, a town square in the Old Town (Altstadt). The red-sandstone ruins of Heidelberg Castle, a noted example of renaissance architecture, stand on Königstuhl hill. On the base … Continue reading Neckar River from sky – Heidelberg.