Karlstejn Castle, standing since the 14th century, features a unique blend of architectural elements thanks to renovations over the centuries. It is most famous for housing a collection of Czech jewels, but fans of the supernatural may also be intrigued to learn more about the spooky local folklore surrounding it. Visit to learn more about the castle's dark periods and immerse yourself in tales about spirits, the tormented "Bloody Katerina," and other mysterious legends. Be sure to purchase tickets in advance for a tour: https://www.hrad-karlstejn.cz/en/on-line-tickets The castle's opening hours vary seasonally and differ between the chapels and main royal residence, so it's vital to verify them in advance: https://www.hrad-karlstejn.cz/en/plan-your-visit/opening-hours