My city Jena
This is a monument for a very famous poetry from Goethe which is the story of a dad and his son on the horse in the middle of forest, where the son talks tells his dad that he is seeing Erlkönig, which is only his imagination. There is a very interesting discussion between them and at the end when they arrive to the village, the son is dead.
There are beautiful compositions for this poetry from Schubert (https://www.youtube.com/watch?v=JS91p-vmSf0). Go and visit this monument as an starting point to learn about German culture.