Chillon Castle is a historic fortress located on the shores of Lake Geneva in Switzerland. It dates back to the 12th century and is one of the most visited historic sites in the country. The castle features well-preserved architecture, including towers, ramparts, and dungeons, reflecting its strategic importance throughout history. The castle served various purposes, including a residence for the Counts of Savoy and a military stronghold. Visitors can explore its beautiful interiors, including the grand halls and the famous Prison of Chillon, where the poet Lord Byron drew inspiration for his work. Today, it stands as a symbol of Swiss heritage and culture.