A little slice of Japan and its aesthetics in London's Holland Park.

This hidden rooftop garden in downtown London offers a quiet respite from a bustling city.

The bar where "The Great Train Robbery" was planned was once a nexus of high society and low morals.

Once designed as the entrance to Buckingham Palace, this structure was later relocated and stands as a victory arch.

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

Originally meant to hold a statue of King William IV, this support sat empty for years. Today, it hosts a rotating cast of public artwork.

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

A memorial for public executions that dates back to the 14th century.

Richard III supposedly disposed of his nephews' bodies here in an effort to seal his claim to the throne.

These wire animal sculptures commemorate the exotic inhabitants that once called the Tower of London home.

The ritual has been performed uninterrupted for nearly 700 years.

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

There's an exclusive Beefeaters pub hidden in the Tower of London.

Tucked away in the Tower of London is the weapon once used to execute high-profile prisoners.

The world's largest collection of ship figureheads includes figures from legends and history alike, from Sir Lancelot to Abraham Lincoln.

Thanks to modern navigational tools we now know that the true prime meridian runs through a park next door.

19th-century scientists would make the pilgrimage here to verify the precision of their measuring sticks.

A dozen cast iron leopards stand guard along the length of Aberdeen's Union Bridge.

This effigy was crafted to annoy a neighbor after a civil dispute over a foul smell.

Near the former site of numerous witch burnings, this lavish Edinburgh mainstay pays homage to Scotland's brutal history.

The fountain marks the area where hundreds of accused witches were burned at the stake.

Overlooked by many, the two famous Scottish warriors guard the main gate of Edinburgh Castle.

The final resting place of soldiers' loyal canine companions.

A six-ton wedding present for the King of the Scots.