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Ambitious engineering projects that have been left in ruins.
These are some of the most spectacular examples of abandoned engineering the world has ever known. The series explores how and why they were built, consider the financial and social costs of their failure and examine the environmental and ecological impacts. The series also explores how experts came up with plans to make something beautiful or useful from the ruins.
Season 1
6 Episodes
February 18, 2017
Season 2
8 Episodes
May 8, 2018
Season 3
8 Episodes
March 26, 2019
Season 4
12 Episodes
June 27, 2019
Season 5
8 Episodes
January 21, 2020
Season 6
11 Episodes
July 9, 2020
Season 7
12 Episodes
January 13, 2021
Season 8
12 Episodes
July 30, 2021
Season 9
12 Episodes
March 21, 2022
Season 10
12 Episodes
September 5, 2022
Season 11
8 Episodes
May 15, 2023
Season 12
8 Episodes
October 23, 2023
Season 13
8 Episodes
June 10, 2024
Season 14
8 Episodes
March 28, 2025
Season 15
12 Episodes
November 26, 2025
Exploring a complex in New Jersey infiltrated by a notorious gang, a tranquil Japanese island with a poisonous legacy, and a top-secret bunker in Lithuania raided in the name of freedom.
Exploring a serene institution in Wisconsin seized out of righteous anger, a Spanish settlement stained in innocent blood, and a subterranean lair in France with a disturbing objective.
Exploring Nazi towers in Berlin that were defended to the bitter end by child soldiers, a Chicago institution that was the largest of its kind, and an odd vision in the Malaysian jungle.
Exploring a Dover stronghold transformed during an unprecedented crisis, and a top-secret site in Japan used for wartime missions of no return.
Exploring a towering structure in London on the banks of the river Thames, witness to the city's darkest days, and a Wisconsin farmstead that brewed up a storm.
Exploring a top-secret military base in Michigan linked to an unexplained disappearance, and a California transportation hub that inspired lasting change.
Exploring the nerve centre of a heroic rescue mission in England, a dilapidated mansion in Virginia raided during the Civil War, and a facility in Detroit where a champion made his name.
Exploring a top-secret facility in Scotland besieged by militant protesters, and a small Greek island caught in a chilling web of controversy.
Exploring a Philadelphia venue that set the stage for era-defining artists, a French compound where a staggering deception was launched, and a the scene of a baffling crime in Malaysia.
Exploring a remote Peruvian island besieged by a violent rebellion, a refuge in Nevada that offered hope to its occupants, and a French worker's paradise seized by an invading force.
Exploring a secret New Jersey facility infiltrated by a Soviet spy ring, an island stronghold besieged by the Nazis, and a palatial compound in Peru frequented by the country's elite.
Exploring a secret subterranean network in London that inspired James Bond author Ian Fleming, and an Italian country retreat that was designed to brainwash a generation of children.
