A Hawaiian stairway to heaven—that you can't climb.

This fantastical waterfall is hidden in a cave located in a cracked cliff.

Hellam Township is reputed to feature seven remote gates, which when passed through in the right order, open an entrance to hell.

Keshwa chaca, among the last handwoven Incan bridges, crosses Apurimac Canyon in Peru.

A rare view of a preserved Victorian science museum.

A gargantuan crystal kingdom.

Every autumn, this hillside is ablaze with red summer cypress.

A natural gas leak provides a flickering flame beneath a waterfall.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

The anatomical-pathological collection of a man who changed surgery.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

These fantastically named natural pools look like something out of a Scottish myth.

Abandoned railway line circling the city of Paris.

One of the oldest medical collections in Europe focusing on rare surgical instruments.

The atmospheric road was never meant to be so creepy.

Crystal clear lake with a shoreline of travertine located in a Colorado canyon.

An abandoned castle owned and ignored by Masons carries a cursed history.

Monasteries on rock pillars, once accessible only by frayed ropes.

The haunting "Hell House Altar" is one of the few remnants of an abandoned college that has been a magnet for local legends.

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

A serpentine highway twists and turns over the treacherous Norwegian Sea.

A tiny microvalley etched into the side of Knocknarea Mountain hides another world.

The seamy, underground secrets of Portland's criminal past.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.