Mukachevo Castle, Ukraine
Don't mind the volcanic hill that houses a castle in western Ukraine. Also known as the Palanok Castle, the site was birthed in the 14th Century and took on many forms over time, including serving as a key prison. With three distinct sections—known as the high, middle and low castle—the 130-plus rooms that once featured over 150 cannons also has a web of underground passages to give it additional intrigue.
Mukachevo castle is a valuable military-architectural monument of Ukraine. The castle was erected at the crossroads of ancient trade and military routes that led from Poddunaysky land to Kievan Rus, and from salt mines of Semigradiye to the Czech Republic, Moravia and Poland.
The purpose of building the castle was to protect and control the trade routes. The exact date of construction is unknown.