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

The final resting place of soldiers' loyal canine companions.

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

This cannonball embedded in the side of an Edinburgh house once served a surprisingly pedestrian purpose.

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

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

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

This 17th-century street hidden beneath Edinburgh was once a breeding ground for the black death.

There is an art, a science, and certainly a responsibility to occupying the Big Red Chair, and this is where it's learned.

The final resting place of a prominent Chippewa chief and several Native American children.

This solemn facility remembers the cruel effort to compel Native American children to relinquish their culture.

This unusual three-way wooden foot bridge spans two rivers at once.

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

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

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

An architectural oddity hides in plain sight on this iconic London bridge.

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

A stone monument acknowledging Scotland's right to have a separate Parliament from the one in Westminster.

A never-finished memorial to the heroes of the Napoleonic War has become "Scotland's Folly."