Porta Nigra
The impressive "Black Gate" in Trier is a 2nd-century Roman city gate. It owes its survival to early use by a revered hermit monk and subsequent transformation into a two-story church.
The impressive "Black Gate" in Trier is a 2nd-century Roman city gate. It owes its survival to early use by a revered hermit monk and subsequent transformation into a two-story church.