At the Three River Conjunction ("Dreiflüsseeck") in Passau, Germany, one river flows green (the Inn), one blue (the Danube), and one black (the Ilz). : r/MapPorn
Passau - Wikipedia
MS Passau Itinerary, Current Position, Ship Review | CruiseMapper
Passau - Wikipedia
Europe's Largest Pipe Organ – Passau, Germany - Atlas Obscura
Passau - Wikipedia
Passau | Familypedia | Fandom
File:Passau, Ilzmündung m Niederhaus u Salvatorkirche, 5.jpeg - Wikimedia Commons
Passau: Rathaus und Dom | Deutscher Wikipedia-Artikel zu Pas… | Flickr