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

An encyclopedic collection of mammal penises.

This valley of hot springs and boiling mud pots is home to the record-holding "Geysir," which originated the English word.

If a glacial river suddenly diving into a sheer chasm via a dramatic, multi-stage waterfall isn't peak Iceland, it's certainly close.

Take a sea tractor to the Art Deco hotel on the island that inspired Agatha Christie.

One of the few surviving street funiculars in the world.

The longest hedge maze in the world.

Famously misunderstood wonder of the ancient world

This picturesque horseshoe weir was first built in the 1600s to prevent flooding in the town of Bath.

The hallucinogenic center of the ancient world.

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

This mystical orb covered in strange symbols is thought to have been used in ancient Greek magical rituals.

Heralded as the world's first theater, these ruins are often overlooked as they reside in the shadows of the Acropolis.

Hidden in a secluded Greek cove is a pristine beach marred only by the rusting smuggler's hulk stranded on its shores.

This magnificent market stands as a poignant symbol of the suffering caused by the Spanish Civil War.

Down this yellow brick road, visitors are treated to toadstool houses and massive mushroom sculptures.

This skewed English house has looked like it's going to fall over for centuries.

Poetic, metallic giraffes adorn a square off an Edinburgh thoroughfare.

Sprawled across the Great Hall ceiling are various constellations and images relating to the zodiac.

The 20th-century chapel’s intricate woodwork includes amazing details, most notably angels playing bagpipes.

Edinburgh's oldest statue hides within a parking lot behind the city's iconic cathedral.

Touching this 18th-century Scottish philosopher’s toe allegedly conjures good fortune.

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

This king penguin is a knighted brigadier of the Norwegian Army.