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

This historic pub has maintained much of its 1906 decor, including a small sequestered room for women, where orders were slipped through a tiny window.

The final resting place of soldiers' loyal canine companions.

An American ghost town hides along a side street in Scotland's capital.

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

A statue in the heart of Edinburgh honors a bear that served in the Polish military during World War II.

Long abandoned underground complex to keep royals safe from a nuclear war that never came.

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

A 18th century graveyard and its astonishing cortege of macabre iconography.

Tiny effigies of the victims of Edinburgh's famous Anatomy Murders.

This series of Scottish caves has no clear purpose other than baffling historians.

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

Ruined 11th century abbey built by King David I in Edinburgh, Scotland.

17th century streets hidden under Edinburgh were once a breeding ground for the black death.

Where now stands a 42-story condominium tower of marble, glass and steel was once the central market of New York’s slave trade.

Little Red Lighthouse under the George Washington Bridge.

Built hundreds of years ago this downtown iron barrier once protected a much despised king.

Unrepaired walls from a 1920 anarchist bomb attack.

A whimsical, but often overlooked clock in Park Avenue.

Hear the tales of New York's most notorious criminals.

This enormous Hindu temple in Queens serves incredible dosas in its basement canteen.

The end of the 4 Line is also the end of the line for 300,000 souls in one of NYC's most illustrious cemeteries.

Curious crustaceans support an obelisk from ancient Egypt that now stands in modern-day Central Park.

A bit of retro transportation flair preserved in the world's largest department store.