A piece of baseball history is preserved in a Pittsburgh parking lot.

The only way to see Pittsburgh is from the top of this lookout point, just like the ancient members of the native peoples did.

A restored Pittsburgh house of God has been converted to a marvelous house of suds.

At this former Prohibition speakeasy, electric birds signaled the arrival of hooch.

At the birthplace of American railroading, a world-class collection of historic trains.

The narrow passages will challenge even the bravest driver.

Located more than 600 feet beneath sea level, this tunnel boasts the world's first undersea roundabout.

This isolated island is often capped by its own fluffy cloud.

In Faroese legend, this sinister horse-shaped beast lures unsuspecting passersby only to drown them in the lake.

This remote island village was in danger of depopulating completely until a tunnel was built to connect it to the rest of the world .

A tiny slice shop hides down an unmarked hallway in a Las Vegas casino.

Inhospitable caverns just beneath this island paradise offer insights into alien worlds.

Celebrating the history of Hangul, the Korean writing system invented by King Sejong to improve his realm’s literacy.

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.

The library's graceful rotunda is like a bibliophile's temple.

A Stockholm metro station is home to an escalator that is not only the longest in Sweden, but among the longest in the world.

One of the oldest family businesses in Reykjavík serves lamb-based hot dogs.

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

This tiny museum's sizable collection is jammed into a former underground public toilet.

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

A 130-year-old urinal is the oldest of Stockholm and perhaps all of Sweden.

Enormous ants wielding giant pine needles guard a Stockholm real estate company's office.

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

Located in an old church, this brewery produces a different kind of holy water.