Tubing through a cave lit with glowworms is a magical underground experience.

The real life Hobbiton, this sheep farm has been forever transformed since being built for The Hobbit film series.

Major tourist destination known for its bubbling mud-pools and hot thermal springs.

The once and future home of New Zealand's famed Pink and White Terraces.

This electric green sulphur lake in New Zealand looks like a cartoonish radioactive dump site.

The only quarter of the Old City not dedicated to a major world religion.

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.

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

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

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

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

Every hour on the hour a naked heroine and her leering foil appear from this giant cuckoo clock.

Famously misunderstood wonder of the ancient world

This hilarious English intersection is an automotive whirlpool.

The largest stone circle in the world has ended up bringing up more questions than it has answered.

The geoglyph once sported a glass bottle eye.

Lyon, France is home to two remarkably preserved Roman theaters, one dating back to 15 BCE.

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

The oldest stone house in Paris was built by its most famous alchemist.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

This statue was given to France by the United States to commemorate the centennial of the French Revolution.