Stone carvings record the Norse myth of Sigurd, providing a glimpse into Scandinavia's transition from paganism to Christianity.

This homeless brass fox tugs at your heartstrings from the foot of a Stockholm bridge.

Now a hotel, this former bank was the site of a robbery that spawned a psychological phenomenon.

The remains of Alfred Nobel's first nitroglycerine factory can still be found on the shores of a Swedish bay.

An illuminated manuscript comprising the life's work of a lone monk, inexplicably decorated with a portrait of Satan himself.

From Coke II to Google Glass, this exhibit features some of the most spectacular commercial flops.

This elaborately decorated wall is an homage to the history, beauty and lore of the palm tree.

A well-restored ancient archaeology site gives a real feel for life during the Roman age.

The deserted remains of a luxury hotel turned hospital ward.

This amended headstone marks the grave of a participant in one of the most successful military deceptions of all time.

A micro-communist utopia in Spain with no police, no mortgages and full employment.

The streets of a sleepy Spanish town proudly exhibit some of the world's finest graffiti.

A display of torture devices used in the Spanish Inquisition and other scourges of medieval Europe.

A stone slab in Madrid marks the point from which the distances of Spain's national roads are measured.

An impressive display of ships and artifacts from the ancient Mediterranean maritime trade.

Visit a surreal landscape so otherworldly NASA actually used it to train the Apollo 17 crew.

This century-old ruined temple was reborn as "The Church of Skate."

A whimsical brother of the nearby Fallen Angel statue takes the falling part quite literally.

The oldest Roman lighthouse still in use.

A vista of the city and sea from atop the little-known viewing deck on an unassuming Columbus statue.

The world's largest wooden structure.

A completely underwater art museum sends a stark message about humans' impact on the environment.

One of Europe's largest supercomputers is housed inside of a disused chapel.

Abandoned Nazi train station turned underground astroparticle laboratory.