Aside from its legendary (or possibly notorious!) annual music festival, Glastonbury is also famous as a sacred site of pilgrimage throughout the Middle Ages and even today, many people are drawn here by the mystical atmosphere. The most important sites in Glastonbury are the Abbey, a stunning ruin where many believe King Arthur was buried alongside Guinevere; the Tor, a tall, imposing tower set high on a hill, and the Chalice Well and Gardens, a blissfully peaceful oasis.