Britain's famous relic, "Stonehenge," is no longer alone. This summer, archaeologists discovered its "little brother," less than 2 kilometers away from Stonehenge, naming this prehistoric site "Blue Stonehenge." According to recent reports by British media, "Blue Stonehenge" consists of a circle formed by 27 blue megaliths, built over 4000 years ago, around the same time as Stonehenge was completed.