What do a 19th-century express mail service, a legendary traveler’s cheque, and your sleek platinum credit card all have in common? American Express. In this episode of Curious Cat, we trace the surprising transformation of one of the world’s most iconic financial brands—from dusty railways to digital wallets. Discover the quirky origins, the bold pivots, and the secret sauce that turned a logistical underdog into a global symbol of prestige and protection. Swipe in and find out how Amex became much more than just a card.