E1 - The Good, Bad and Abandoned

Aired: May 20, 2021

The world's abandoned structures hold new evidence about the lives and deeds of history's greatest heroes and villains, and using the latest discoveries at these mysterious sites, experts count down the ten most significant.

E2 - Ruins of Disaster Park

Aired: May 27, 2021

A collection of ramshackle structures with a mystical facade lie mysteriously deserted on the tropical island of Bali; experts investigate and uncover the ruins of a bizarre amusement park complex with a disastrous past.

E3 - Fortress of Nuclear Secrets

Aired: June 03, 2021

Experts investigate bunkers that conceal a deadly nuclear secret.

E4 - Plague on Hell Island

Aired: June 10, 2021

Experts investigate the deadly legacy of an abandoned sea fort.

E5 - Florida Death Fortress

Aired: June 17, 2021

A desert island contains a marooned structure with a contagious past.

E6 - Hollywood vs. Nazis

Aired: June 24, 2021

A war-torn Italian ghost town immortalized by a legendary Hollywood director blurs the lines between fiction and reality; experts investigate and uncover a forgotten landscape of ruins captured in a WWII documentary.

E7 - Hitler's Nightmare Palace

Aired: July 01, 2021

The ruins of a dreamlike Polish palace hide an astonishingly dark history that's shrouded in mystery to this day; experts investigate and uncover an ornate gothic structure that concealed a nightmare of Nazi experimentation.

E8 - Alien Ghost Tower

Aired: July 08, 2021

A breathtaking stainless steel tower seems otherworldly and out of place in the remote mountain forests of Croatia; experts investigate and uncover a dark past of Nazi-led conflict and a monument to a desperate fight for survival.

E9 - Russian Mafia Resort

Aired: July 15, 2021

Experts uncover a derelict resort complex constructed by the Russian mafia.

E10 - Ghosts of Mount Fortune

Aired: July 22, 2021

The haunting remains of an isolated ghost town high in the Colorado mountains suggest a once booming mining community left in devastation; experts uncover an inhospitable land of shattered dreams where fortune seekers chased the American dream.

E11 - Chinese Nuclear Box

Aired: July 29, 2021

An enormous concrete box with bizarre circular openings looms on the coast of an island near mainland China; Experts investigate and uncover tunnels leading to an enormous underground complex that nearly triggered a nuclear war.