Dover Castle - England - United Kingdom

Dover Castle, perched majestically on the White Cliffs of Dover in England, is a historic fortress with a rich and storied past dating back to the 11th century. Often referred to as the "Key to England" due to its strategic importance, it has played a crucial role in defending the realm from invaders across centuries, from medieval sieges to World War II operations. The castle's imposing keep, designed by Henry II, showcases exceptional Norman architecture, while its labyrinthine tunnels tell tales of wartime ingenuity. Today, Dover Castle stands as a testament to England's resilient history, offering visitors a captivating journey through time.