The sanctuary seems to either float atop the water or sink into the dirt, depending on the water level.

England’s ancient oak tree has such an impressive girth, people have been hosting parties within the hollow trunk for centuries.

The ruins of a 17th-century lodge on a grand estate are being slowly restored to their former glory.

The viewpoint for this attractive, off-the-beaten-path waterfall is reached by a paved, wheelchair-accessible trail.

A raised boardwalk winds through a thicket of stunted, century-old trees no more than nine feet tall.

Four abandoned towers hidden above the Douglas fir forest in Washington.

An ADA-accessible trail and deck offering stunning views of Colorado’s Mount of the Holy Cross.

Hidden deep in a forest is this geological wonder carved by glaciers.

Once a sewer culvert, this road tunnel now offers cyclists and pedestrians a subterranean stroll under the C&O Canal.

This hiking/biking/horse trail along an old railroad grade features trestles, tunnels, and a roadless stretch through the scenic Susan River canyon.

This lovely Scottish nature walk leads to the source of a local legend.

The cliff and rock formations are made out of Sioux Quartzite.

Thirty creepy ghosts now inhabit this decaying 14th-century church.

The atmospheric road was never meant to be so creepy.

This Spokane mansion and the stories within its walls have been brought back to life, thanks to careful restoration.

This spooky road cut through a mound of ancient coral might be haunted by a witch.

In 1329, Christine Carpenter entered this small stone cell in the hopes of becoming a living saint.

One man's dream has turned into this naturally growing chapel made of almost nothing but trees.

A roadside hotel that you can’t stop at. 

A submerged village appears when dam levels drop.

A Romanesque tower appears when water levels drop.

Bell tower juts out from a village buried under a lake.

The cardinal directions, set in stone.

Stones speckled along Harris Avenue reveal hidden nuggets of the past.