Heidelberg Castle wall, Heidelberg, Germany. © 2004 Kenneth R. Sheide
Interior of Heidelberg Castle, Heidelberg, Germany. © 2004 Kenneth R. Sheide
Heidelberg Tun (Grosses Fass) purported to be the world's largest wood wine vat, Heidelberg Castle, Heidelberg, Germany. © 2004 Kenneth R. Sheide
