That´s a nice idea, I´ve been to Westfalen where you find the Externsteine,
and they are really awesome, and we had such a sunny great day there.
Not far away is the Hermannsdenkmal, the monument of Hermann the German,
who fought in 9 AD against the Romans, to avoid a romanisation of the Germanics.
Near the monument is a nice town called Detmold.
If you drive a bit on, you can reach the Wewelsburg, the mysterious castle where the SS was active,
there is a very long museum about the history of the SS.