An abstract representation of weather in Sweden.

The discovery of an old wall led to the creation of this fascinating museum about the city in the Middle Ages.

A wooden street sign is the last remnant of this 400-year-old alleyway.

Dine on food tied to Viking history and legend at this subterranean Stockholm spot.

A plaque marks the house in Stockholm where the French philosopher René Descartes lived up until his death.

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

One of the world's first dedicated bank buildings in the world is now the oldest one.

A man has revenged his true love's betrayal through tears and stone genitalia.

Several cannonballs of mysterious origins decorate two buildings in Stortoget's main square.

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.

This small museum nestled inside a souvenir shop is dedicated to Sweden's most well-known toy.

Maybe the only restaurant in the world where your seat will be signed by a Nobel laureate.

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

Clap your hands at the base of the pyramid, and the song of a sacred Mayan bird will echo through the air.

A magical sinkhole on the Yucatán Peninsula is adorned with mini waterfalls and hanging vines.

If drivers cross the rumble strip on this stretch of Route 66 at just the right speed it plays "America the Beautiful."

A relatively obscure antihero from the Marvel Comics universe adorns a wall inside Iceland's main airport.

You've probably seen these distinctive orange-tiled columns on the big screen.

Medicinal spa created with the discharge from a geothermal energy plant.

Walk in the footsteps of the gods and straddle two tectonic plates.

The world's largest vertical wind tunnel.

This two-room shotgun shack in Tupelo is the birthplace of a King.

Over a dozen Native American earth mounds dating back over 2,000 years dot this Tennessee archaeological park.