Winners took all in the race to get rich in the California and Klondike gold rushes; unearthing the ships involved reveals the risks taken to go west.

In 1942, Japan came to dominate the Pacific region. The secret as to how they did it lies waiting to be discovered.

In just 400 years New York has become a global powerhouse. By draining the ocean, revealing submerged shipwrecks and subterranean secrets, we explain how.