The medieval castle of Karlstejn, located 35 km (20 mi) south-west of Prague, is a Gothic wonder overlooking a tiny and picturesque village. The fortress was founded by Holy Roman Emperor Charles IV in 1348 to house Bohemia's valuable coronation jewels and relics, and henceforth remained an important part of the region's heritage. Inside you'll be able to admire the castle's rich stucco decorations and unique collection of weapons.