From the earliest colonization attempts to the present day, hurricanes have wreaked havoc along the North American coast. Exploring the wreckage reveals surprising truths about the continent's history. Researchers explore a 16th-century Spanish galleon from the Luna expedition near Pensacola, Florida; a mysterious pile of revolutionary-era cannons off Saint Augustine, Florida (1782); and hundreds of submerged New York City subway cars at Redbird Reef off the Delaware coast. Scientists are uncovering how hurricanes have shaped America's past—and how they might impact its future.