Forget the Caribbean swashbucklers—these pirates set their sights on something far bigger. In 1628, a ruthless Dutch pirate fleet led by Admiral Piet Hein pulled off the greatest heist in history, ambushing a Spanish treasure fleet loaded with silver from the Americas. In a daring attack off the coast of Cuba, they seized over 11 million silver coins, an amount so massive it funded an entire war against Spain! This wasn’t just a robbery—it was a blow that shook the Spanish Empire to its core, proving that no fleet was truly safe.