Throughout the American Civil War, technological advances fuelled an arms race on America’s seas and rivers. Science and graphics drain the oceans to reveal the ships that shaped America.

The secrets of the survival of the Roman empire are unearthed from beneath the waves of the Mediterranean and the soil of the Italian peninsula.

In the greatest amphibious invasion fleet ever assembled, 7,000 vessels and 250,000 men take the Nazis by surprise. By draining the ocean, we explain exactly how they did it.