Which is the longest castle complex in the world?

Burghausen Castle in Burghausen, Upper Bavaria, is the longest castle complex in the world (1051 m), confirmed by the Guinness World Record company.

The castle hill was settled as early as the Bronze Age. The castle (which was founded before 1025) was transferred to the Wittelsbachs after the death of the last count of Burghausen, Gebhard II, in 1168. In 1180 they were appointed dukes of Bavaria and the castle was extended under Duke Otto I of Wittelsbach.

The gothic castle comprises the main castle with the inner courtyard and five outer courtyards.

The outermost point of the main castle is the Palas with the ducal private rooms. Today it houses the castle museum, including late Gothic paintings of the Bavarian State Picture Collection. On the town side of the main castle next to the donjon are the gothic inner Chapel of St. Elizabeth (1255) and the Dürnitz (knights' hall) with its two vaulted halls. Opposite the Dürnitz are the wings of the Duchess' residence.