A volcanic tunnel illuminated by natural skylights offers a shaded respite from the desert sun.

The world's fifth tallest waterfall is a spectacular silver chute of water that cuts through the cloud forest in northern Peru.

This 700-year-old Cyprus castle is the birthplace of the world's oldest wine, said to be toasted by Richard the Lionheart at his wedding.

Sunset-colored dunes of volcanic ash make taking a poor photo impossible.

With nearly double the depth of the Grand Canyon, this Peruvian canyon is one of the deepest in the world.

Things aren't quite what they seem at this mind-bending museum.

After spending more than a century on the ocean floor, this shipwrecked column is finally resting atop solid ground.

These once-beautiful historic graveyards are set against the barren Virginia City hills.

The stunning interior of this Gothic church is covered in ornate gold details.

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

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

This quiet park's strange sedimentary spires were named after Kodak's color film.

Deep in the countryside lie the remains of one of the grandest Roman dwellings in Britain.

Bacteria and algae give the salty water its bubblegum hue.

You feel like you're in a forest, but you're actually walking amidst the branches and trunks of a single giant tree.

This isolated structure beckons adventurers with sublime views of the Faroe Islands.

A stunning two-story timepiece within a medieval Brick Gothic church.

This Manchester laundromat is hiding something.

This nine-story building can be played like an instrument.

A Dutch passageway's artistic, aquatic-themed makeover pays tribute to the capital city's famed waterways.

A local tree surgeon has created a whimsical walk full of carved tree stumps near Scotland's Loch Lomond.

A Nevada mining boomtown that ran out of silver and luck.

Local legend says the remains of Father Christmas lie within the medieval grounds.

Resonating tubes make music from highway overpass.