Dover Castle is a historic fortress perched on the white chalk cliffs overlooking the English Channel, commanding the strategic gateway between England and Continental Europe. Dating to the Norman period and expanded through medieval and modern eras, the castle features a keep, curtain walls, and extensive underground tunnels that served crucial roles throughout its centuries-long history. Managed by English Heritage, the castle welcomes visitors to explore its diverse architectural periods, military installations, and engineering achievements spanning over 900 years. The dramatic clifftop location provides commanding views across the Strait of Dover while the castle itself preserves rooms, fortifications, and interactive displays documenting its evolution from royal stronghold to modern heritage destination.