This is the South Tower of the Wartburg near Eisenach, Germany. It was erected in 1318. The building on the right is the servant's quarters and dates back to the 15th century. The castle itself dates back to 1067, but not much of the original structure remains today.
The Wartburg was the site of various important events in German history, including a Minstrels' Contest where the looser was going to be executed (instead of executing the looser they decided on a rematch the next year which ended without anyone dying), Luther hid here after being excommunicated and translated the bible into German, and a 1817 fraternity meeting first raised the call for a unified Germany (as opposed to a bunch of tiny kingdoms) to name just a few. The frat boys also effectively chose the colors of the present day German flag, which uses the colors of this fraternity.
Unfortunately I don't have any well planned shots of the castle. It was just too windy and cold to spend a lot of time on top of this mountain, but hopefully this is enough to offer a glimpse of the history we saw in Germany this winter.
Business As Usual