Heimburg Castle (Burg Heimburg), also called the Altenburg or Alteburg, is a ruined castle on an oval hilltop which is located just north of the Harz Mountains in central Germany. The ruins of this hilltop castle stand above the village of Heimburg in the borough of Blankenburg in the district of Harz in the state of Saxony-Anhalt.

Fürstenberg Castle (Rheindiebach). The Burg Fürstenberg is a castle near the village of Rheindiebach in Rhineland-Palatinate, Germany.

Stahleck Castle (Burg Stahleck) is a 12th-century fortified castle in the Upper Middle Rhine Valley at Bacharach in Rhineland-Palatinate, Germany.

Stahleck Castle (Burg Stahleck) is a 12th-century fortified castle in the Upper Middle Rhine Valley at Bacharach in Rhineland-Palatinate, Germany.

Pfalzgrafenstein Castle near Kaub, Germany with Gutenfels Castle on the hill above town

Pfalzgrafenstein Castle near Kaub, Germany with Gutenfels Castle on the hill above town

Gutenfels Castle on the hill above Kaub, Germany

The Schönburg is a castle above the medieval town of Oberwesel in the Upper Middle Rhine Valley, Rhineland-Palatinate, Germany.

The Schönburg is a castle above the medieval town of Oberwesel in the Upper Middle Rhine Valley, Rhineland-Palatinate, Germany.

Oberwesel, Germany and its medieval town fortifications

Hague Storm_Red Tower in Oberwesel, Germany

Ochsenturm Tower in Oberwesel, Germany

Train tunnel - during World War II, tunnels were extremely important to the Germans and Hitler had all entrances disguised to look like this in hopes that the Allies would not bomb them

Train tunnel - during World War II, tunnels were extremely important to the Germans and Hitler had all entrances disguised to look like this in hopes that the Allies would not bomb them

Train tunnel - during World War II, tunnels were extremely important to the Germans and Hitler had all entrances disguised to look like this in hopes that the Allies would not bomb them

Loreley Rock, On the Rhine River, on the eastern shore, atop a steep rock, there once lived a nymph named Lorelei. She dressed in white and wore a wreath of stars in her hair. She was exquisite, but more than her physical beauty was the song she sang -- a song so alluring, no one could resist its pull. People said that anyone sailing close to that rock would lose his life for her song was irresistible, and no sailors who tried to reach Lorelei ever returned

Loreley Rock, On the Rhine River, on the eastern shore, atop a steep rock, there once lived a nymph named Lorelei. She dressed in white and wore a wreath of stars in her hair. She was exquisite, but more than her physical beauty was the song she sang -- a song so alluring, no one could resist its pull. People said that anyone sailing close to that rock would lose his life for her song was irresistible, and no sailors who tried to reach Lorelei ever returned