The Kingdom of Bohemia was a medieval monarchy that ruled over the parts of the modern-day Czech Republic and Germany from the end of the 12th century until the First World War. The Bohemian ruler Ottokar built Samobar Castle in the mid-13th century, during a war over the disputed Duchy of Styria. But he soon lost it to Croatian-Hungarian forces.

Today, the stone fortress peers down over the roofs of modern-day Samobor. It is just a 10-minute walk from town and visitors can still marvel at the walls and remains of the moat. The only surviving original element is the guard tower. Much of the rest of the remains, including the gothic chapel of St. Ana, are from 16th-century modifications.