This 2,300-year-old Mosaic Made of Shells and Coral Has Just Been Found Buried Under Rome

Excavations into the side of the famous Palatine Hill in Rome have uncovered the banquet hall of a wealthy aristocrat that contained a mosaic made almost entirely of materials from the sea.
At 16 feet long and 2,300 years old, the incredibly detailed mosaic was made of seashells, coral, mother of pearl, blue glazed tiles from Egypt, flecks of marble, and Roman glass, and depicts sailors, ships, mythical sea life, trumpets, and tridents.