
Mysteries of the Abandoned
- 2017 – 2026
- Returning Series
- Documentary
- ~42m / ep
- 13 seasons
- 7.3/10
Documentary series investigating why some of the world's most advanced architectural achievements were abandoned.
Latest: Season 13 · 2026
View all seasonsE1. Blood Wedding
Feb 11, 2026
A serene institution in the American Midwest, seized in righteous anger, a subterranean lair in France designed with a disturbing objective, a Spanish settlement concealing a story of forbidden love and ruthless retribution.
E2. The Island of No Return
Feb 11, 2026
In New Jersey, a symbol of American pride and dominance; a top-secret site in Japan used for wartime missions of no return, an Italian town, whose residents were given lethal advice by government officials.
E3. The Beer Riot
Feb 18, 2026
A compound in Seattle linked to a high-profile military scandal, a concrete shell in London that fell victim to the city’s largest explosion, a Wisconsin farmstead known for its brewing history, and a hilltop stronghold in Greece that faced the wrath of a sultan.
E4. Do-Over Ranch
Feb 18, 2026
Revisit an isolated Peruvian prison where a notorious riot took place and see a revolutionary sanctuary in a Las Vegas park. Learn how a Paris monument became a labor nightmare, then investigate a Sicilian paradise lost in the wake of a disaster.
E5. D-Day Castle
Feb 25, 2026
Unearth a wartime nerve center in Dover that made the UK proud, then visit a mansion caught in the crosshairs of the Civil War. Dig up an Estonian ruin's connection to Catherine the Great and explore the arena where Joe Louis boxed his way to fame.
E6. Japan's Poison Island
Feb 25, 2026
An investigation centres on a New Jersey racetrack run by a notorious gang, a destructive legacy on a remote Japanese island, a Soviet bunker for a Lithuanian takeover and the pivotal facility that launched Motown's top artists.
+6 more episodes — open all seasons to browse every episode.

















