Trier, not far from home, and already a different world.
The Porta Nigra (Latin: black gate) is a large Roman city gate in Trier, Germany. It is today the largest Roman city gate north of the Alps and has been designated a World Heritage Site. Quite impressive to see a Roman building, this size!
We also went to an exhibition of Constantin the Great, a Roman emperor.His main residence from 306 untill 316 AD was Trier.
The sky was blue, but it was sooo cold!