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.

The real life Hobbiton, 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."

France's most famous cemetery, with some of its most curious tombs.

The turquoise-studded skull of a long-dead Aztec man sits within Mexico City’s Museum of Anthropology.

These spectacular, symbolic serpents lie within the shadow of the Great Temple.

A disquieting Aztec sculpture displays hundreds of stone skulls representing the victims of human sacrifice.

A vista of the city and sea from atop the little-known viewing deck on an unassuming Columbus statue.

The iconic boulevard is the perfect place to catch sight of a bicycling skeleton, a levitating Satan, or a chef with his head stuck in a pizza.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

A celebrated bandstand at the center of what was once the worst slum in London.

A fully functional, 200-year-old remnant of the time when Brixton was mostly fields.

A wonderfully eclectic Victorian aquarium lies in the basement of the Horniman Museum.