A labyrinthine network of chambers with a storied past hides below Edinburgh's South Bridge.

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

Touching this 18th-century Scottish philosopher’s toe allegedly conjures good fortune.

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

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

This extinct volcano rises above Edinburgh and is special for its panoramic views over the city.

This centuries-old pub boasts a collection of more than 4,500 snippets of neckties from around the world.

The spot where Oxford garnered its name was also home to a medieval philosopher and includes a house covered in statues.

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

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

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

This inn of the court provides a fascinating window into London’s legal and architectural history.

An unusual round church in London with a Templar past.

Hear the quietest sound from across the dome.

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

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

Graffiti from the 16th and 17th centuries cover the walls of this part of the Tower of London.

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

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

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

A replica of the steam engine that hauled Queen Victoria's Royal Train is on display at Windsor.

A railroad tunnel that, upon its completion, was considered one of the engineering marvels of the modern world.

The ruins of this Thomas-Jefferson-designed mansion have been left to crumble since the Christmas Day they burnt down.

The story behind the mysterious symbol painted in front of the historic university's famous Rotunda.