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

A cablecar-station-turned-revolving restaurant with 360-degree views of the Swiss skyline.

This grisly effigy displays an early Christian martyr who was skinned alive and beheaded.

Two very green residential towers cleaning the air in one of Europe's most polluted cities.

Milan's duomo is covered in beautiful carving including a curious "dinosaur-like" beast.

The walls and streets of the ancient city are peppered with penises.

Before it was buried by volcanic ash, this fast-food restaurant fed the hungry hordes of ancient Rome.

This amazing medieval fortress stands atop a promontory along the famous Cinque Terre.

A lover's walk between hilltop towns, decorated with graffiti love notes.

This tiny chapel withstood a massive mudslide and flash flood.

On the walking path from Monterosso to Vernazza, a small shrine dedicated to feline friends.

Five candy-colored villages on the Italian Riviera.

The world's largest permanent architectural projection display entertains audiences nightly with 28-story light shows.

Not quite the menace it once was, this monster still has some chops.

In 2018, Pohoiki Road was severed by lava flowing from the eruption of Kilauea.

This legendary urban waterfall creates a dazzling display of rainbows.

Watch the newest land on the planet form before your eyes.

These picturesque Hawaiian falls are home to a rare species of fish that uses a special sucker to climb up cliffs.

Earth's tallest volcano is sacred to Native Hawaiians, and home to a dozen world-class observatories.

This industrial area was the dumping ground for massive amounts of trash, some of which washes up as tiny bits of sea glass.

This blowhole is supposedly caused by a trapped monster.

Twisted girders are all that remain of an Icelandic bridge that was wiped out by a combination of volcanic heat and glacial floods.

This verdant, tree-lined Reykjavik graveyard is both enchanting and eerie.

Cairns built to bring travelers good luck stretch across the land like miniature stone mountains.