Public domain
Santo Stefano Rotondo and Roman Aqueduct Ruins
From the collection of Kunstmuseum Basel. Free to download, adapt and use — no permission needed.
Credit lineSanto Stefano Rotondo und römische Aquäduktruinen. Friedrich Horner (1800–1864). Kunstmuseum Basel, Kupferstichkabinett, Prof. Rud. Handmann-Horner-Stiftung. Public domain.