Niederwalddenkmal

 This is a monument to honor the heroes from the German states who banded together to form the German Empire after the Franco-Prussian War. This is a statue of Germania.

Germania, courtesy of Wikipedia. She holds the recovered emperor's crown and the Imperial Sword.

 Here is the relief below the statue, from Wikipedia. On the horse is Emperor William I.

The view of the Rhine from Niederwalddenkmal