The Visegrad Citadel sits high above the Danube on a wooded ridge, its towers visible for miles in either direction along the river. Built in the 13th century and expanded over the following centuries, the castle served as Hungary's most important royal fortress and guarded the Hungarian crown jewels for decades. The largely intact walls and towers make it one of the better-preserved medieval fortresses in Central Europe.
The climb from the town takes about 30–45 minutes on foot through pleasant woodland; a mini-train runs from the lower town in summer. From the battlements, the view down the Danube Bend is one of the finest in Hungary — the river narrows between wooded hills before turning sharply south toward Budapest, with the twin spires of Esztergom visible to the north on a clear day. A small museum inside covers the castle's history and the role of Visegrad in the medieval Kingdom of Hungary.