How did an Australian statue of the Bard of Avon end up in the Hungarian capital?

On one of the world's most active volcanoes, a pebble-filled crater changes color with the wind.

At the center of an island in the middle of the Indian Ocean is a deep chasm ringed by tall waterfalls.

Réunion Island's highest point is a 2 million-year-old volcano and a paraglider's paradise.

At the foot of an active volcano sits a church miraculously spared by its lava.

Each spring, a dreamlike carpet of bluebells overtakes the forest floor.

A famed artist's inspiring work of peace and tolerance.

While you wait to cross the street at a traffic light in Mainz, you might notice that the light is staring back at you.

The last bastion of Roman presence north of the Alps looms over a German town.

The birthplace of Karl Marx is now a museum dedicated to the communist revolutionary's life and work.

This tri-part waterfall is a little bit of fairytale beauty in the heart of Luxembourg's Little Switzerland.

Healing waters from a holy well, previously used by locals for doing laundry.

Statues of a fire-breather, a clown, and a whole performing troupe celebrate Luxembourg's creative side.

Some believe that the artist behind this whimsical statue inserted his own likeness as a way to discreetly flip the bird.

An expansive complex of subterranean tunnels is all that remains of one of Europe's most formidable medieval fortresses.

This magenta statue commemorates the legendary marriage between a mermaid and the city's founder.

This small chapel built into rock is the oldest place of worship in Luxembourg.

Vibrant street art created with mixed media.

The magnificent sanctuary is Spain's first purpose-built structure of its kind.