Remnants of the 16th-century defensive wall still stand unassumingly within Edinburgh.

The tomb of one of Scotland's bloody historic villains is a magnet for bumbling desecrators.

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

The most loyal of little dogs, or a Victorian era publicity stunt?

The final resting place of soldiers' loyal canine companions.

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.

Books you don’t need in a place you can’t find.

The oldest working mechanical clock in the world.

Famously misunderstood wonder of the ancient world

A bronze statue dating back as far as 1252, still has remnants of gold on its right cheek from ancient gilding.

Originally envisioned by King Ludwig II to rival Versailles, Herrenchiemsee's "New Palace" remains half-gilded for lack of funds.

The fairy tale castle of the "fairy-tale king."

The former home of Samuel Clemens and family remembers the happiest period of the author's life.

Mysteriously stacked storefront paths give this medieval British town an iconic style like none other.

Thousands of tourists and residents in Cologne affix "love padlocks" on the Hohenzollernbrücke Bridge to symbolize their affections.

Life-size bronzes of the Grinch, Cat in the Hat, Yertle the Turtle, Sam-I-Am, and the Lorax—and the author himself.