A king's bloodstained shirt is among the gruesome collection of artifacts displayed below Stockholm's Royal Palace.

Stockholm's narrowest alley is barely over two feet wide.

Stockholm's tiniest statue is of a small boy looking at the Moon.

It is said that each of the white stones in the red facade of this medieval house represents the head of a murdered Swedish noble.

An ancient Viking runestone hidden in plain view in Stockholm's old town.

A statue honoring 44 continuous years of greeting passing ships.

This kitschy tavern is also home to rare early editions of "Treasure Island."

When you visit his grave, be sure to rub the Great Emancipator's nose for good luck.

A three-story tower of books about Abraham Lincoln is one of the more unusual monuments to the president.

The original vault that held the president's remains still stands, empty, not far from where he was finally buried.

After a water tower painting was accused of being an ad, a simple fix was made that gave the city a motto.

Moonbows over Kentucky.

The world's longest known cave system.

Iceland's tribute to its thankless civil servants.

The picturesque birthplace of Icelandic democracy is drenched in the blood of its brutal past.

This stunning concert hall has become a symbol of Iceland's national recovery.

This black church sits alone among a field of lava rock.

The summer tourists on these cliffs are thousands of seabirds.

A formerly glacier-tipped volcano that inspired none other than Jules Verne.

An encyclopedic collection of mammal penises.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

This mountain fissure hides a secret path to a secluded mossy grotto within the rock itself.

Medicinal spa created from the mineral-rich runoff of a geothermal power plant

Strange red rock formations that have been attributed to a higher power for hundreds of years.