"Tintagel Castle is so old its history remains a bit of a mystery. The large castle that once stood is now reduced to ruins, but that doesn't make it any less appealing. The castle has reportedly been inhabited since the late Roman period but gained most of its fame in the 12th century when Geoffrey of Monmouth named it as the place where King Arthur was conceived. Dive into history by visiting the site's exhibits, walk its many paths, and explore the rock pools at the beach below." - Travel + Leisure Editors