Hellenistic periods
Ghostly graveyard of 60 perfectly preserved ancient shipwrecks is found at the Black Sea (VIDEO-10 PHOTOS)
Dozens of perfectly preserved ancient shipwrecks have been found at the bottom of the Black Sea.
A total of 60 wrecks were discovered dating back as far as 2,500 years, including galleys from the Roman, Byzantine and Ottoman empires.
Scientists stumbled upon the graveyard while using underwater robots to survey the effects of climate change along the Bulgarian coast.