The location of the Bridge of Death and the Gorge of Eternal Peril in "Monty Python and the Holy Grail."

A stone arch leads to a cavernous 1930s spring house tucked away in the Pennsylvania woods.

Though strikingly beautiful, Seattle's other railway station is now largely forgotten.

One of the oldest lighthouses in the world has been in continuous use since it was first built in 1531.

Legend has it fairies gathered at the site of this medieval castle.

This tiny Swedish troll protects the land and all who wander within it.

Dedicated to a strange, local cryptid beloved by all.

In a 345-million-year-old cave that's 200 feet underground, dinner awaits.

You can find America's highest suspension footbridge at Grandfather Mountain in North Carolina.

It is said the legendary wizard once lived in this sea cave beneath Tintagel Castle.

A unique botanical garden housed in three giant geodesic domes.

The "Bridge Over the Atlantic" lets you cross the waterway in mere seconds.

Cliffs full of fossils at the portal to England's Jurassic Coast.

This black shoreline is made up of exploded lava particles.

Long before guestbooks and hotels, frontier travelers signed their names on this rock face.

One of the oldest active carousels in the country—but it might be missed by all but the keenest-eyed boardwalk strollers.

A pink cottage covered in hearts served as a haven and a resting place for LGBTQ activists.

Scotland's first Masonic lodge may also be the oldest in the world.

Heralded as the oldest statue in London.

Once the path of a railway tunnel, now home to thousands of glowing insects.

For two weeks every June, fireflies in the Smoky Mountains perform an astonishing light show.

This observation tower is one of two of its kind that still exist in the United Kingdom.

Sip a cappuccino in the historic cafe that introduced them to the United States.

Seemingly grown on some other world, these New Mexico rock formations look like a disused science fiction set.