Three columns of volcanic rock shoot out of the ocean.

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.

The picturesque birthplace of Icelandic democracy is drenched in the blood of its brutal past.

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

Iceland's tribute to its thankless civil servants.

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

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

This hobbit-y little hot spring may be the oldest spring used by humans in all of Iceland.

Europe’s most powerful hot spring supplies the surrounding region with hot water.

The ancient latrines of the Greeks, in all their public glory.

Carvings in Turkey's Marble Road may have directed ancient Romans to a hidden brothel.

This former “ante-chamber to the guillotine” has been refurbished to illustrate the brutal history of French justice.

For more than a century, revolutionary graffiti has marked the wall of a Parisian church.

One of Jeff Koons’s largest sculptures and his first commemorative work.

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.

High atop the Eiffel Tower is a small apartment built exclusively to entertain the science elite and make the rest of Paris jealous.

A museum on the history of Paris, including a set of Napoleon's toiletries, Proust's room, and relics of the Revolution.

Indents in the pavement are all that remain from a grisly death machine in Paris.

A horde of stray cats rule in this secluded Parisian cemetery under a bridge.

Bioluminescence in the reefs of the Maldives causes the sea to glow like a starry night sky.

The last king of Poland was interred in this church nearly 200 years after his death.

In the summer, the area around this sculpture transforms into a vibrant concert venue.

Special benches that play Chopin's music are scattered throughout his native city.