The ruins of a church destroyed by both the Great Fire of London and the Blitz, now turned into a peaceful garden.

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

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

Carved initials which are nearly 500 years old preserve the deposed Queen's presence at Hampton Court Palace.

Mary Kelly was last seen here before she was murdered by Jack the Ripper.

This German fountain of a legendary apple wine-loving drink thief will spit on you.

The block of aged dairy is probably still edible after 2,300 years in a peat bog.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

A statue in the center of Dublin dedicated to one of their favorite sons of rock & roll.

This cemetery overlooking the Benbulben rock formation is the final resting place of one of Ireland's most beloved poets.

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

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

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

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

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

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

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

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

One part local history, 99 parts gruesome haunted house.

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 ancient Egyptian obelisk still bears the wounds of World War I.

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

This coffee shop lies hidden beneath a historic church.