Lithuania: Trakai Island Castle
The Trakai castle is beautifully located on an island surrounded by lake water, and is often referred to as “little Marienburg” (in reference to similar looking Malbork castle in Poland). The castle was built in early 15th century, at the height of the Great Duchy of Lithuania and was strategically positioned in the center of the country. It’s been partially destroyed but restored since. It’s a UNESCO World Heritage site.