Forgotten Urban Histories: The extraordinary secrets of ordinary cities.

On the afternoon of April 9, 1942, the sky over the village of Mosta turned entirely black. Malta was enduring the absolute height of an intense, industrial Axis siege, and the Luftwaffe had targeted the island with relentless, heavy bombardment. But as the sirens wailed, three hundred local citizens didn’t run for the deep-level limestone trenches. Instead, they gathered together for late afterno...

London is exceptionally good at appearances. From the surface, it presents as an entirely orderly, predictable metropolis that queues with mathematical precision and insists on calling things "temporary closures" even when the gates have been padlocked since the Second World War. But just fifty feet below the pavements—under the heavy thrum of the red double-deckers and the hurried rush...

The Bourbon Tunnel: The King Who Dug Himself an Escape Beneath the lively streets of Naples lies a tunnel built out of royal nerves and Neapolitan stone. In this episode, we follow the curious story of King Ferdinand II, who ordered a secret escape route carved straight through centuries of underground history — Roman aqueducts, Renaissance quarries, and everything in between. The plan was simple:...

Beneath the bright boulevards of Paris lies another city — silent, cold, and built entirely of human bone. In this episode, we explore how overflowing cemeteries, disease, revolution, and empire all led to the creation of a vast ossuary beneath the French capital — a labyrinth that holds the remains of over six million people. We walk through the history that placed them there, and then shine a li...

 Beneath the quiet streets of Liverpool lies a labyrinth carved by hand over two centuries ago — a network of tunnels with no clear purpose and no surviving plans.  In this debut episode, Mark Kerrigan explores the mystery of Joseph Williamson , the eccentric visionary known as The Mole of Edge Hill . From vast underground chambers to the strange relics left behind, discover the story of one man’s...