
Abandoned Engineering
Projects include a ruined compound on the edge of a peninsula in Colombia.

Projects include a ruined compound on the edge of a peninsula in Colombia.

An elaborate underground complex in Italy that had been abandoned for nearly 2,000 years.

A maze of tunnels filled with haunting remains beneath the streets of Paris.

A maze of tunnels filled with haunting remains beneath the streets of Paris.

The vast monolithic structures that dominate the small British island of Guernsey.

A seemingly endless concrete line stretching through the French countryside.

A Soviet dream-town that turned into a nuclear nightmare.

A formerly luxurious and strategic mountain-top villa on the island of Rhodes.

Projects include a ruined compound on the edge of a peninsula in Colombia.

An elaborate underground complex in Italy that had been abandoned for nearly 2,000 years.

A maze of tunnels filled with haunting remains beneath the streets of Paris.

Learn more about some forgotten bridges, including Goat Canyon Trestle and Kinzua Viaduct.

See what became of the HARP gun in Barbados and the Barcroft Observatory in California.

A look at some of the world's most extraordinary forgotten urban areas.

A Soviet dream-town that turned into a nuclear nightmare.

Hear how a shifting hill in the Peak District and sand in California caused road closures.

Learn more about some forgotten power stations and towers, including Kelenfold in Hungary.

Discover more about some once-great triumphs of marine engineering, now left to rust.

Discover more about some once-great triumphs of marine engineering, now left to rust.

Learn more about some forgotten bridges, including Goat Canyon Trestle and Kinzua Viaduct.