Hermitage - the treasury of world art. Surprise and delight become the companion of a person who passed through the halls of this museum. Here is a picture, sculpture, panel, made of multicolored stones. Look in the hall of ancient gems and find on one of the showcases cameo Gonzago. Next to it time manifests its most mysterious properties, the minutes are compressed into centuries, and the surrounding space inhabit heroic ancient characters... Wondering about the beauty of the ancient jewelry, you will unwittingly ask yourself what miracle stone has given nature into the hands of an ancient master. It is agate...