This "floating railway" is one of the world's oldest monorail systems.

The bizarre visions of H.R. Giger, tucked away in a Swiss medieval city.

The risqué mixed-media sculptures are supposedly a metaphor for Czech politics.

Traditional 11th-century outdoor tannery.

A fortified city, home to a remaining population of five families

Enjoy fresh-baked bread and fish from a repurposed Portuguese fortress.

Along the most northwestern point in Africa is an ancient cave surrounded by legends.

One of the most spectacular canyons in the world.

The remains of a magnificent medieval fortress that was the capital of a vast empire.

A desert that rolls right up to the ocean, where it's so dry animals live off the fog.

The largest known meteorite on Earth was too big to move.

The remains of diamond fever taken over by the desert.

Ten shipwreck-shaped chalets lie along the sand dunes on Namibia’s Skeleton Coast.

No one knows why ancient labyrinths were built on this tiny northern island.

The world's first museum dedicated to the work of game-changing naturalist Charles Darwin.

Some of the world's only freshwater seals live in one very special lake in Russia.

The reason for the strange contortions in the trunks of these "drunken" pine trees in Russia is still a mystery.

The villagers of the coldest inhabited place on Earth adjust to unique challenges presented by day-to-day living.

Museum celebrating the achievements of the Soviet space program.

Immortal combat in a Moscow museum.

It's hard to believe the dizzying patterns covering this abandoned mine are completely natural.

Hidden behind mountains in Morocco, a remote town hides a thriving surfing community.

Deliberately hidden for centuries, the magnificent Saadian Tombs were eventually uncovered in 1917.

Exploring the wilder, more passionate sibling of Erg Chebbi feels like discovering a secret sun-kissed planet from another galaxy.