Drain the Oceans: Season 4, Episode 6

4 - 6: Venice's Lost Empire

Once known as Queen of the Adriatic, Venice conquered the eastern Mediterranean, but how did her fleet enable her to become a maritime empire? The wreck of a 14th-century war galley uncovers Venice's naval secrets; the wrecks of merchant ships reveal how Venice became an economic powerhouse; and how mass graves uncovered on a Venetian island show Venice faced an enemy which even she couldn't conquer.