Archaeologists found the upper brow of a face followed by two large eyes, and the head of a dragon came into view. Coins, lotus tiles and building materials were also found, according to the release.

The astronauts who flew aboard the Boeing Starliner for its maiden crewed voyage undocked Tuesday morning from the ISS and are on their way home.

The blue dragon, as water deity, is one of the directional guardians believed to defend the ancient capital to the east. In Shinto, the water deity appears in various guises at shrines.