Eisenberg, Hill summit in Waldeck-Frankenberg, Germany

The Eisenberg is a wooded hill of 560 m in the Waldeck-Frankenberg district, rising almost 200 m above the Korbach Plain about 4 km southwest of Korbach's centre. On its summit stand the ruins of Eisenberg Castle, of which ground walls, a rampart and a ditch remain, and the 22.5 m Georg-Viktor Tower. The village of Goldhausen lies on its southwestern slope.

The hill's gold was mined in the Middle Ages, and mining ceased during the Thirty Years' War. The castle on the summit, built in the 13th century by unknown builders, was first documented in 1345; its foundations, rampart and ditch remain. Attempts to resume gold extraction in the 20th century failed.

The hill's name comes from its iron ore, and gold was mined here in the Middle Ages until the Thirty Years' War halted the work. The 22.5 m Georg-Viktor Tower, built by Waldeck state architect Wilhelm Müller, was inaugurated on 3 June 1905 and is named after Prince Georg Viktor zu Waldeck and Pyrmont. Visitors can climb it from 15 April to 31 October, daily 9 am to 7 pm.

The Georg-Viktor-Turm on the summit is open daily from 15 April to 31 October, 9 am to 7 pm. The tower stands 22.5 m tall beside the castle ruins; its platform looks north-east to Korbach, east to the Habichtswald, south to the Eder heights and Kellerwald, and west to the Rothaargebirge. The ruins of Burg Eisenberg lie at the tower's foot, with foundation walls, rampart and ditch still visible.

The hill's gold was mined in the Middle Ages, but mining stopped during the Thirty Years' War; attempts to resume it in the 20th century failed. The 22.5-metre Georg-Viktor-Turm, built by Waldeck state architect Wilhelm Müller, was inaugurated on 3 June 1905 and is named after Prince Georg Viktor zu Waldeck and Pyrmont.