The mysterious round rocks of Schooner Gulch.

Natural sonic phenomenon comes with a grisly legend of murder and blood.

A chilling disappearance (and rescue) of a child uncovers a geological mystery.

This Nevada lake holds its titular natural pyramid and, if the legends are true, a number of dangerous spirits.

Eons old volcanic activity created one of the most stunning rock formations in the United States.

The titular "little arch" near this Italian resort is one of the most popular diving spots in the country.

Wondrous sandstone hoodoos where Native Americans collected clay for pottery, 9,000 years ago.

This remarkable cave was discovered after a shepherd watched bees enter and exit through a small fissure.

This scenic Icelandic lava flow is named for a pair of Berserkers who were murdered, according to a famous Saga.

The largest lake in the Faroe Islands seems to be held hundreds of feet above sea level thanks to an optical illusion.

This small group of sand dunes manages to pack in a strange rainbow of colors.

This tiny square mile of Canadian sand was once considered the world's smallest desert.

This hill made entirely of ancient Roman jars was simply a garbage dump to the people of the time.

This giant boulder is pinched over a 1000-meter abyss by two mountains.

A collision of human error and natural geothermal pressure created this rainbow-colored geologic wonder.

The bluer than blue waters in these natural Israeli caves are reached via the world's steepest cable car.

Since ancient times these picturesque springs have been providing bathers with healing waters.

This haunting stone chasm is a hotbed of mossy rock and English legend.

Plains of ash and pair of semi-active volcanoes contribute to the otherworldly beauty of this little-known Vanuatu island.

According to the locals, the sands of this secluded Norway beach are infused with gemstone particles.

These layered sandstone mountains in China look like they are made of pressed crayons.

A trio of red, white, and blue stones embedded in the streets of Leiden are markers of medieval territory and law.

Legend says that these tall basalt pillars are the petrified wives of a trickster god.

An exercise in patience and imagination, where Mother Earth turned common stuff into precious hidden treasures.