Our last full day in Vilnius, and indeed the Baltic states. Eastern Europe has apparently just one castle built on an island in a lake, and that’s in Lithuania at Trakai, about 20km out of Vilnius. Having travelled through Scotland several times, including just last year, I’ve seen my fair share of castles in lakes, it’s basically mandatory there to have a castle, or the ruins of one, wherever an island exists in a lake/loch. Mandatory, Bonnie Prince Charlie said so. Eastern Europe, not mandatory, maybe the folks at Trakai did it and then paid everyone else not to, so they’d be unique, or maybe in the Grand Duchy of…