Dragons are mythical creatures with varied physical appearances that occur in stories from Europe, Asia, and Africa. Some are fearsome monsters and others are wise and benevolent. They usually have wings, may be covered in scales or feathers, and often guard treasures. Saint George and the Dragon is one of the most famous myths, as is Smaug in Tolkien's 'The Hobbit'. In Chinese mythology the dragon is a symbol of good luck, strength, and power. Dragons usually have magical powers such as the ability to breathe fire, control the elements, and even shapeshift.