In northern Germany, the Teutoburg Forest is home to many Germanic legends. Since the end of the 19th century, the statue of Hermann – known in Latin as Arminius –, hero of the Germanic people of the Cheruscans, has watched over the vast Teutoburg Forest. Did this warlord really allow the Germans to repel the Romans two thousand years ago? A few kilometers from the statue stands an impressive rock formation called Externsteine. Have these steep cliffs kept traces of ancient Germanic civilizations?