S9 E4 ∙ Tunnel of Terrors ∙
Exploring a military strong-hold in the Philippines, a facility that spawned an American sporting great, and an English relic that hosted a cinematic sensation.
All episodes for series 9 of Abandoned Engineering
S9 E1 · Megalomaniac's Palace
Exploring a once lavish palace in Iraq.
S9 E2 · Jungle Fantasy Land
Exploring the remains of a pioneering industry town in Ohio.
S9 E3 · The Beached Leviathan
This episode features remains of a correctional facility in Atlanta.
S9 E4 · Tunnel of Terrors
Exploring a military strong-hold in the Philippines.
S9 E5 · Apocolyptic Skyscraper
Exploring a ruined castle above a German village.
S9 E6 · Ruins of Empire
Exploring a British fort that became a bizarre zoo.
S9 E7 · Trouble in Paradise
Exploring a luxury resort in Argentina.
S9 E8 · Experiments of War
Exploring a crumbling dam hidden in the Welsh valleys.
S9 E9 · Ancient Encounter
Exploring an ancient Turkish city that looks out-of-this-world.
S9 E10 · Alien Contact
Exploring a complex in Georgia that almost discovered a signal from aliens.
S9 E11 · Treasures to Die For
Exploring Hartwood, a haunting facility in Scotland.
S9 E12 · Niagara's Hidden Marvel
Exploring an engineering marvel hidden behind the Niagara Falls in Canada.
