This is what trains will look like after the zombie apocalypse.

St. Mary's Asylum was isolated and abandoned before being converted into a Bed and Breakfast.

Thousands of flamingos and other bird species flourish in these Camargue wetlands.

The control tower at the historic weapons range is now available as a highly unusual vacation rental.

A subterranean playground in an abandoned slate mine.

Near Birmingham, England three and a half miles of top-secret tunnels housed a World War II “shadow factory” and a Cold War nuclear bunker.

An 18th century monument regularly tagged with unsettling graffiti referencing a 1940s unsolved murder.

The Isle of Wight’s “Island Line” serviced by former London Underground trains from the 1930s.

This foolish Victorian sea fort was converted to a deluxe hotel.

A relic of Victorian grandeur hides beneath a busy South London road.

The secret wartime bunker built on the platforms of an abandoned Tube station.

A stunning 18th-century site where pilgrims ascend by a series of punishing stairs only to return via funicular.

The abandoned funicular tunnel was a secret base for the BBC during World War II.

The UK's oldest theme park slowly slips away.

Nature and beauty amidst pollution and industrial wreckage.

Nightmarish example of the unintended consequences of weapons testing.

Pompeii's less famous neighbor is still revealing her secrets.

Mysterious craters may have been home to an ancient cult.

An amusement park on the grounds of an unused nuclear power plant, with a swing ride inside the cooling tower.

Fifty years of contamination in Scotland's waters.

Below a historic English market town lies a secret underground city complete with kitchens, laundries, storerooms, and an underground lake.

An abandoned railroad tunnel is now filled with bioluminescent bugs.

A midnight snack that lights up the night.

At this exhibit on the world of poison, venomous animals steal the show.