Border Megacity: The World’s Busiest Land Crossing

Nearly 2,000 years ago, Teotihuacan became the largest city in pre-Columbian America. Built around the Pyramids of the Sun and Moon, it attracted around 120,000 inhabitants from across Mesoamerica, including Maya and Zapotec communities. Archaeologists reveal how religion, immigration, trade and planned housing transformed Teotihuacan into the continent’s first cosmopolitan metropolis. Its foreign neighbourhoods, vast apartment compounds and thriving obsidian industry created an urban model far ahead of its time. Yet one mystery remains unresolved: who founded this immense city, and who ruled it?

A lone truck driver outwitted one of North America’s busiest airports and vanished millions in goods. Meet Smiley Ong, the man investigators chased for over a decade. From bribed cargo crews and casino cash washes to a monk-blessed prayer room with framed $1,000 bills, this Masterminds case unpacks the quiet empire built inside Toronto Pearson’s warehouses. See how Teresa Pang’s insider shipment data supercharged the thefts, how eBay became a 19,000-transaction pipeline, and why organized crime chose to tax rather than stop him. Then comes the glitch: hard drive serial numbers that trigger a chain reaction, an alias known as “Joe Hard Drive,” and garages stacked to the ceiling with high-end loot. The twist that finally links everything together isn’t where you expect. Discover how a “candy store” of cargo turned into a $7 million operation, how it stayed invisible for years, and the moment it all unraveled. Watch to the end for the precise move that cracked the case and the aftermath that changed airport security investigations. Watch now to see how one mastermind stayed under the radar for

Railways transformed the world with speed, power, and innovation. Discover how high-speed trains, maglev technology, and engineering marvels have shaped our journey. From the iconic Shinkansen bullet train to futuristic magnetic levitation (maglev) systems and the dream of Hyperloop pods, this episode explores the evolution of rail power. Learn how advancements in train design, aerodynamics, and electric propulsion have revolutionized intercity travel, while massive freight trains and legendary luxury lines like the Orient Express and Trans-Siberian Railway continue to capture the imagination. We delve into the mechanics behind electric multiple units, diesel-electrics, and the role of trains in warfare and industry. See how innovations like the pantograph, linear induction motors, and advanced braking systems keep trains fast, safe, and efficient. Visit the world's busiest and longest lines, from Japan's billion-ticket Shinkansen network to Russia's Trans-Siberian, and marvel at the sheer scale of Western Australia's iron ore trains. Peek into miniature wonderlands and the luxurious world of modern tourist trains. Finally, glimpse the future with Hyperloop and driverless metros, where the next leap in rail technology promises almost frictionless, supersonic travel.

See how advanced control rooms, maintenance crews and thousands of employees move roughly 3.6 million passengers through Tokyo’s Shinjuku Station every day.

Explore the evolution of sea power - from hydrofoiling catamarans and record-breaking ships to nuclear icebreakers and solar sails shaping the future of exploration. Dive deep into the fascinating history and cutting-edge technology behind humanity’s ongoing quest to conquer the sea. This episode unpacks the incredible journey from the earliest waterborne craft to today’s marvels like the hydrofoiling catamarans that revolutionized the America’s Cup, experimental vessels inspired by nature such as the WAMB “spider boat,” and the rise of ultra-fast, efficient catamarans dominating commercial travel. Discover the innovations behind the mighty Maersk Triple E container ships, agile tugboats, and the titanic passenger liners that have defined ocean travel, including the legendary Titanic, Queen Mary, and Oasis of the Seas. But the story doesn’t stop at the surface. Learn how nuclear-powered icebreakers clear paths through the polar ice, how remote-operated and autonomous underwater vehicles are unlocking the secrets of the deep, and how engineering challenges have spurred breakthroughs that reach far beyond our oceans. Finally, witness the connection between marine technology and interstellar travel, as solar sails take inspiration from ancient

Join a powerful ocean tug on a ninety-day operation moving an enormous drilling rig from South Korea to Europe around the Cape of Good Hope.