Commissioned by Charlemagne in 786 AD, Aachen's cathedral is the oldest in Northern Europe and contains several holy relics.
Founded in 1010, the cathedral of Hildesheim contains many treasures of early medieval art, including bronze doors carved with biblical scenes and a bronze column showing the life of Christ.
The house where Luther and his family lived is well-preserved and full of Reformation relics, including Luther's desk, his pulpit, and first editions of his books.
Schottenkirche St Jakob
Founded by Irish missionaries, this Romanesque church is famed for its fascinating sculptured portal.
Built in the 1300s on the site of earlier cathedrals, this is the finest Gothic building in Bavaria. Its harmonious exterior is alive with medieval sculptures and inside is medieval stained glass.
The impressive "Black Gate" sight is a 2nd-century Roman city gate. It owes its survival to its use by a revered hermit monk and subsequent transformation into a two-story church.
With the cathedrals of Worms and Speyer, Mainz Cathedral represents the high point of Romanesque cathedral architecture in Germany.
A mysterious and magical place, Externsteine was a pagan sacred site until Charlemagne outlawed paganism in 782, after which it was occupied by Christian hermits.