Places radon Wants to Go

Children's author May Gibbs's beloved stories about the tiny, human-like "Gumnut Babies" are immortalized in bronze.

This natural rock formation features seemingly unnatural vertical ridges that have been blamed on elves.

The land is full of geologic eye candy, such as otherworldly spires, mushroom-shaped hoodoos, and prehistoric fossils.

A 600-year-old mini shrine guarded by a sword-wielding knight hides in a crumbling cliff face.

In the depths of the Everglades, one man has dedicated his life to studying the elusive Skunk Ape.

Protected from the elements, these Native American rock paintings have survived approximately 250 years.

A historic hill of tall tales, with one rather special tree.

A ruined castle has more than its fair share of legends and ghost stories.

Ancient cliffs resembling a kilt on Scotland’s second-largest island emit an entrancing sound.

One man spent 10 years building a spectacular section of road because no one else would.

These ancient sunken lanes were naturally tunneled into the soft ground by countless footsteps.

The longest stone bridge in England has an impressive history that dates back over 700 years.

Though much of the castle was robbed of its stones, the underlying earthworks are among the best-preserved in England.

A labyrinth of ancient tunnels hidden below the city holds the ruins of 2,500 years of history.

A small mountain at the crossroads of Turkey, Iraq, and Syria that some believe was the landing point of Noah's Ark.

These strange piles of magnetized volcanic ash travel across the desert about 50 feet per year.

A remarkable medieval structure born from a 14th-century disaster.

The remains of this deep, dark mine have left behind a haunting rocky warren of tunnels.

Granny Smiths and Fujis can both be traced back to Kazakhstan, where apples still grow wild.

A preserve with 75,000 ancient drawings remains the realm of public – not just scientific – exploration.

More stones than Stonehenge, all scattered within a windswept landscape sure to enchant 'Outlander' fans.

The remains of the oldest synagogue in Britain lay forgotten for seven centuries, hidden under a humble shop.

Ruins battered by centuries of war and disaster offer a wondrous glimpse of medieval Ireland.

A medieval fountain lined with 99 unique stone faces whose origins and meaning remain unknown.