10. Dover Castle
Strategically positioned atop the iconic White Cliffs, Dover Castle has long stood as England’s formidable guardian, overlooking the vital shipping lanes of the English Channel. Known as the “Key to England,” this castle has played a crucial role throughout history, from medieval sieges to the defense against invasion threats during World War II. Beneath its ancient walls lies an extensive network of secret wartime tunnels, used as command centers, hospitals, and shelters during critical periods. Visitors today can explore these fascinating tunnels, tour the impressive medieval keep, and marvel at panoramic views stretching across the Channel to France.
