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.

From the earliest colonization attempts to now, hurricanes have wreaked havoc along the North American coast. Exploring the wreckage reveals surprising truths about the continent's history. Through the remnants of a 16th century Spanish galleon, a mysterious pile of revolutionary era cannons, and hundreds of submerged New York subway cars, scientists are uncovering how hurricanes have shaped America's past - and how they might impact its future.