S4 E1 • The World's Strangest Ghost Town

A settlement in Argentina destroyed by floods, a town in the US that has been erased, and a Soviet dream-town that turned into a nuclear nightmare.

Première diffusion : 27 juin 2019

S4 E2 • Palace of Death

A seemingly endless concrete line stretching through the French countryside, which sits as a monument to a discarded engineering advancement.

Première diffusion : 4 juillet 2019

S4 E3 • Guernsey Nazi Towers

A little-known dark past explains the vast monolithic structures that dominate the small British island of Guernsey.

Première diffusion : 11 juillet 2019

S4 E4 • Bodie USA

Projects include a maze of tunnels filled with haunting remains beneath the streets of Paris and a strange formation of domed structures hovering over the waters off Florida.

Première diffusion : 18 juillet 2019

S4 E5 • Tunnel To The Underworld

A town in West Virginia that fell victim to the pace of change when steam trains became obsolete and an underground complex in Italy that had been abandoned for nearly 2,000 years.

Première diffusion : 25 juillet 2019

S4 E6 • Escobar's Ruin

Features a ruined compound in Colombia which was once home to Pablo Escobar and alien-looking structures with no apparent purpose, isolated in an empty English marshland in Denge, near Dungeness in Kent. But how and why were they ever built at all, and why are they now left abandoned?

Première diffusion : 1 août 2019

S4 E7 • Villa De Vecchi Rhodes

A formerly luxurious and strategic mountain-top villa on the island of Rhodes in the Mediterranean that's been ravaged by acts of revenge by locals since 1955.

Première diffusion : 8 août 2019

S4 E8 • Pyramiden Norway

A strange-looking deserted town with an almost supernatural atmosphere on a remote Norwegian archipelago in the Arctic Ocean was in fact an ambitious Soviet mining outpost with a tragic history. Also, a collection of imposing buildings on the southern tip of Australia, the remains of curious-looking basins emerging from the waves in the shadow of the Golden Gate Bridge and the ruins of a monumental construction project in southern Germany that was a ruthless regime's deadly prototype.

Première diffusion : 31 octobre 2019

S4 E9 • Behind The Berlin Wall

Once they were at the heart of the Communist empire, now they lie abandoned leaving only memories of a time before the fall of the Berlin Wall. Now, each haunted shell is ready to reveal its own story. Still standing today, a fierce-looking prison and an innocuous looking office building in Berlin were actually the headquarters of a feared and ruthless organisation - the Stazi. Also, a covert Communist base hid Cold War submarines for Tito, the former leader of Yugoslavia on the island of Vis. A seemingly innocuous sports centre hides a sinister underground bunker. And the former HQ of the Soviet Army in East Germany was a forbidden Soviet city within a city - the vast site in the East of Berlin is still abandoned today but its architecture still impresses and even the statues of Lenin still stand in this visually remarkable, place from another time.

Première diffusion : 7 novembre 2019

S4 E10 • Bannack USA

A sprawling Wild West ghost town sits peaceful and abandoned in Montana, USA, but is still haunted by tales of murder, corruption and buried treasure. Also, a cold, dark, underground mountain network that cost the lives of thousands... the crumbling ruins of an English industry that turned poison into profit... a peaceful village that was shattered by the terrors of war.

Première diffusion : 14 novembre 2019