On December 21, 1192, Richard I of England — the Lionheart, fresh from the Third Crusade — was imprisoned in Dürnstein Castle by Leopold V, Duke of Austria. The ransom: 150,000 marks of silver — 34 tons — two to three times England's entire annual royal revenue. As the boat rounds the bend approaching Dürnstein, the blue-and-white baroque tower appears first. Look ABOVE it, to the rocky cliff 150 meters up: those are the ruins where Richard was held. Blondel de Nesle, his minstrel, reportedly wandered castle to castle singing the first verse of a song only the two of them knew — listening for a voice to sing the second verse back. At Dürnstein, he heard it. Stay on the bow deck as the boat approaches, and say the name out loud: Burgruine Dürnstein.
🔄 BACKUP: If weather is obscuring the cliff, ask anyone on board to point out the Burgruine — every Austrian will, usually with some pride.