Hidden on the urban banks of a Manchester river are a series of abandoned waterside industrial sites.

The construction of this bridge dates back to the 15th century.

The grand complex of buildings that comprise Liverpool's Exchange Flags includes a vast World War II bunker that has been frozen in time.

Most of Britain's gold reserve was secretly stashed here after the start of World War II.

The enchanting archway is the only surviving portal into Dublin’s lost medieval wall.

The only airport with a people mover system designed by Walt Disney Imagineering.

Sculptor Antony Gormley used chaos theory and fractal growth to design his tallest creation.

This sculpture of a pylon is upside down and askew, as if its main purpose is to confuse passersby.

A network of bells in the pubs and restaurants around Westminster alerts politicians when it's time to cast their votes.

The perfectly preserved underground rooms where Churchill plotted the war against Germany.

A statue of the legendary Celtic warrior queen who fought the Roman invaders stands in one of the cities she once destroyed.

A sweet symbol marks the place where torturous executions were once carried out.

The Scottish Reformation leader's grave was paved over and is now a parking lot.

Edinburgh's oldest statue hides within a parking lot behind the city's iconic cathedral.

An underground venue, buried for 200 years, now open as a unique whisky tasting venue.

This colorful statue welcomes visitors to a Barcelona park.

An early 20th-century bullring converted into a modern shopping center.

The final resting place of a poisoned lover whose death was at the center of one of Glasgow's most sensational murder trials.

A serene public space nestled within the remains of Glasgow’s Victorian maternity hospital

Looking strangely like Rome's Colosseum, this unfinished tower has dominated the skyline for over 100 years.

The highest peak in the United Kingdom has a history of physics, specters, and a pilgrimage of strange objects.

In 1990, this 37-foot red steel bottle sailed from New York to England.

Inside this clubhouse is a cinephile's paradise.

Commercial aircraft storage facility, where you can see a TWA 747.