Eighty million natural history specimens call this gargantuan museum home.

Repository for more than 22 million pickled specimens.

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

A historic London cemetery now serves as a nature park incorporating gravestones & memorial statues.

Pop culture has helped to keep this iconic British building from being destroyed.

A community of artists and entrepreneurs seeks a simpler life on London's waterways.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

This former medical factory gives home to cutting edge arts in the shadow of a gas works.

The taxidermied remains of a once-great parrot.

An unusual round church in London with a Templar past.

This massive collection of British military artifacts includes the heartbreaking personal letters of the men in the trenches of WWI.

Shiny Brutalist box commemorates a pioneer of electricity and houses a railway transformer.

The oldest working mechanical clock in the world.

Famously misunderstood wonder of the ancient world

This Italian-style temple replica has been threatening to fall off the Irish coast for hundreds of years.

Northern Ireland's Brobdingnagian stepping stones.

This short bridge is the only thing connecting a tiny Irish island to the mainland.

The atmospheric road was never meant to be so creepy.

One of the most popular megalithic sites in Ireland stands as a humbler version of Stonehenge.

This single room has survived the centuries with almost no deterioration.