A 1,215-foot tunnel transports pedestrians beneath the River Thames.

One part local history, 99 parts gruesome haunted house.

A famous burial ground with a history both grim and literary.

A hands-off space for graffiti artists to hone and display their skills.

This one has sailed five times as far as Sir Francis Drake's famous ship.

Ship-sized kinetic sculptural fantasy.

An abandoned tank sits in an empty London lot as a symbolic middle finger to local city planners.

After nearly 60 years, there's still a bear at Paddington Station looking for help.

Hidden beneath the streets of London is a secret subway that only carried mail.

One of these two land speed record-breaking vehicles went so fast it shattered the sound barrier.

All that remains of the medieval palace of the famous "Black Prince."

The bombed out remains of the old church were kept intact next to the new one, as a reminder of the futility of war.

Every hour on the hour a naked heroine and her leering foil appear from this giant cuckoo clock.

A preserved block of timber buildings from the city's industrial era in the Middle Ages.

Have a seat with the father of modern computing at this Manchester monument.

After mysteriously refusing to surrender at the end of World War II this sunken submarine was only salvaged in a search for Nazi gold.

These lovely Turkish-styled baths were brought back to life after winning a reality show competition.

The gloomy ruins that inspired Bram Stoker to bring Dracula to life.

Locals spent years successfully fighting to save this beloved Brutalist behemoth from demolition.

A rotating bridge that carries a little canal over a larger one.

A harrowing sculpture commemorates the four people shot down during the workers strike of 1842.

The second-longest pier in the U.K. stretches a whole kilometer into the Irish Sea.

A tiny, hidden alleyway dedicated to the father of meteorology.

This unique collection of lawnmowers includes vintage blueprints and automatic robot mowers.