Chalice Well symbol; it is a symbol of a spring, located at Glastonbury Tor, in the county of Somerset, England. The water of the spring has a characteristic reddish hue, caused by iron oxide. According to the legend, it is the last known place where the Holy Grail has been. The symbol is a Vesica Pisces, a shape that is the intersection of two circles with the same radius. All the regular polygons can be found in it. It is also a representation of feminity in various cultures.
Holy Grail. It was the cup used by Jesus in the last dinner. Since the Middle Ages, it has been believed to have special powers.