Celje Old Castle, also known as Celje Castle, is the largest medieval castle in Slovenia and a significant symbol of the city of Celje. Perched on a hill overlooking the town, it offers stunning views of the surrounding area. Dating back to the 12th century, the castle reached its peak as the seat of the influential Counts of Celje, who played a pivotal role in medieval European politics. Today, the castle is a popular tourist attraction, a venue for cultural events, and a destination for history and architecture enthusiasts.