These stark white cliffs were spat up by the sea and are slowly being retaken by it.

A red sandstone freestanding monolith rises out of the sea in northern Scotland.

The mysterious megaliths have enchanted and intrigued visitors for thousands of years.

A small island abbey is the final resting place of many medieval Scottish monarchs, including the real Macbeth.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

Spend the night in this formerly abandoned traditional Scottish village.

A battle between nature and architecture in the Cambodian jungle.

Site of a classic 19th-century physics experiment to prove the earth is rotating.

Rome’s legendary peephole vista is also a former Crusader stronghold.

Pompeii's less famous neighbor is still revealing her secrets.

The yawning maw of this pagan visage is said to bite off the hands of liars.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

Tubing through a cave lit with glowworms is a magical underground experience.

This whimsical group of statues is a favorite of children who love to climb all over Lewis Carroll's beloved characters.

This sheep farm has been forever transformed since being built for “The Hobbit” film series.

Paris' linguistic guide to the international language of, yes, love.

Macabre astrological automaton clock dating to the late 1400s.

A horde of stray cats rule in this secluded Parisian cemetery under a bridge.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

Elevated freight railway turned wildly successful urban park.

Try not to get slimed in Tribeca.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

The fairy tale castle of the “fairy-tale king,” this was also the inspiration for Disney’s “Sleeping Beauty.”