Karlštejn Castle is a magnificent Gothic castle located on a hill in Karlštejn, Czech Republic, offering a deep dive into Bohemian history. While the walk up from the village is steep, shuttle buses and horse-drawn carriages are available for easier ascent; however, the castle interior itself involves numerous stairs and is not fully wheelchair accessible. Visits to the castle interiors are exclusively by mandatory guided tour, with various tour routes available, so solo exploration is limited to the exterior grounds and approach. The castle has seasonal opening hours, typically closed on Mondays and for a period in winter (e.g., January-February) ON CONFLICT (id) DO NOTHING; always check the official website for current schedules. Approximate costs include entrance fees for guided tours (varying by route, usually a few hundred CZK per person) and parking. A typical visit, including the walk and a guided tour, usually lasts 2-4 hours. Given its popularity, especially in peak season, it's highly recommended to book tours online in advance to ensure availability and avoid queues.