Scattered throughout London are ancient remnants of the city's former bounding wall.

The largest greenhouse in the world is home to over one million types of plants.

A island reachable by a causeway at low tide is possibly one of the earliest Western European locations to be identified in text.

This London pub hides a peculiar secret: a recreation of the rooms shared at 221b Baker Street by Sherlock Holmes and Dr. Watson.

Famously misunderstood wonder of the ancient world

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

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

The mysterious, fantastical woodland inspiration for "The Lord of the Rings."

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the first ‘Harry Potter’ film.

This well-preserved Cistercian Abbey in a romantic pastoral setting has inspired artists like the poet Wordsworth.

A harem-inspired Moorish fantasy design in a Victorian-era Welsh castle.

The highest peak in Wales is said to be the final resting place of a giant killed by King Arthur.

An impromptu shrine appeared shortly after beloved "Torchwood" character Ianto Jones was killed off the show.

Recently restored menagerie of Victorian-era beasts.

Stroll through Welsh history in a village of reconstructed structures.

A tiny village in Wales claims the name of a noble medieval hound slain for a crime he didn't commit.

This peaceful sanctuary is one of the oldest Buddhist temples in Colombo.

This elaborate temple was built around one of the Buddha's teeth.