These massive moving sand dunes have swallowed an entire village and are still on the run.

The ruins of an Estonian prison are drowning in the quarry lake where the convicts were once forced to work.

This soviet pilot's graveyard is filled with headstones made of airplane fins.

A church of bones, decorated with 40,000 human skeletons.

More sculpture than building, this architecturally significant temple was built on the spot of Saint Peter's crucifixion.

2300-year-old Roman road connecting the empire.

This overlooked street light once served as a KGB dead letter box.

Scars of this building's past life as a violent prison still cover its walls.

Local lore says two enemy dragons live within these breathtaking mountain lakes.

Climb atop one of the world's longest and heaviest trains for an unbelievable journey across the Sahara Desert.

Made by a man on a worldwide sanitation crusade.

One hundred years ago this small house in downtown Zürich became the birthplace of the Dada movement.

Cat art as far as the eye can see.

This ambiguous pig shrine is actually a monument to a beloved queen.

Bangkok's men with dangerous jobs come here in search of protective talismans.

Derelict airplane bodies serve as both home and income for three Thai families.

A treasure trove of pathological, forensic, parasitological, and anatomical specimens.

A collection of venomous snakes and reptiles for the whole family to enjoy.

Fast food feels like fine dining at this award-winning modern Georgian building.

Buy your fish and have it cooked to order in this bustling, eight-floor seafood market.

An abandoned desert hamlet swallowed up by sand.

Swiss vineyards in a UNESCO heritage site.

France's highest manned weather station is the only one still inhabited by meteorologists.

This amazing pedestrian suspension bridge in the Swiss Alps would give Indiana Jones nightmares.