Trier
Rome North of the Alps
Portrait
Trier was an imperial residence and the largest Roman city north of the Alps, and the Porta Nigra survived only because a Greek monk lived in it as a hermit and it was turned into a church — Napoleon ordered the church stripped away in 1804, leaving the gate. The imperial baths, basilica and amphitheatre all stand, and Karl Marx was born four streets from the gate.
If you like this city