A vision of crenellated towers, ornate gables and medieval-style fortifications, Schloss Stolzenfels rises above the Rhine’s left bank 5km south of the city centre. In 1823, the future Prussian king Friedrich Wilhelm IV had the castle – ruined by the French – rebuilt as his summer residence; guests included Queen Victoria. Today, the rooms remain largely as the king left them, with paintings, weapons, armour and furnishings from the mid-19th century.
Take bus 650 from the Hauptbahnhof.