An amazing collection of rare wind instruments where visitors can give the iconic Swiss Alphorn a toot.

Lucerne's central prison was converted into a tourist hotel with a bare minimum of changes.

At 929 pounds and 26 feet tall, this stainless steel fork can only be used by the likes of King Kong.

This historic covered bridge contains a series of macabre paintings that communicate one thing: everyone dies.

This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.

Italian cave with exceptional acoustics and an unsavory history.

"Stairs of the Turks", a chalky white cliff eroded conveniently into stairs, allowing for easy pillaging.

Dublin's most modern, visually spectacular bridge is modeled after Ireland's national emblem.

Hear the quietest sound from across the dome.

A place of great reverence for Trekkies everywhere, a hero's future birthplace.

Pulled from the rubble of one of the worst modern tragedies, a steel crossbeam became a symbol of hope for New Yorkers.

This simple Manhattan salt house is artfully shaped... well, like a giant granule of salt.

There must be a pun in this haystack somewhere...

The most confusing clock in New York.

A curious fountain that has no water and includes Satan, a crab, and 9 giraffes.

Visit the monolithic tomb of America's most famous general.

An artist's cute bronze subway sculptures belie his violent artistic past.

A bit of retro transportation flair preserved in the world's largest department store.

Curious crustaceans support an obelisk from ancient Egypt that now stands in modern-day Central Park.

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

The "Seinfeld" diner.

Peek through the gates at this oasis from the city, full of Old English charm.

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

Mysterious 500-year-old tapestries depict a unicorn hunt.