The railroad tunnel nicknamed the "Bloody Pit" for taking the lives of hundreds during its construction.

This sprawling 18th-century cemetery features unique and beautiful gravestones, including one shaped like a tree.

More than 200 unconventional musical instruments that anyone can play.

Resonating tubes make music from highway overpass.

Naturally formed white marble arch housed in an abandoned marble quarry from the 1800s.

A Mysterious Masonic tomb in San Luis Obispo.

Coastal dunes, site of buried Egyptian movie set and former utopian colony.

The site of the first "historically true" UFO encounter in the U.S.

This old-fashioned roadhouse's quirky neon sign is as famous as its enormous dumplings.

A suburban museum tells the story of a historic transportation network and even provides rides in antique trolley cars.

The world of the ancient Celtic civilization explained through a bewitching 11 acre garden.

A more than 260-year-old crypt built on Boston's oldest English burial ground.

Ever wanted to can Spam?

Triangular House built on a leafy residential street in St. Paul.

The literary king of the Jazz Age was born in this lovely Minnesota home which still honors his legacy.

The home where a lovestruck Fitzgerald wrote his first published novel, "This Side of Paradise."

Equal parts record-breaking temple to consumerism and bizarre fun park, it's more than you think it is...

Home to the Amorphophallus titanum "Corpse Flower," which is among the largest flowers in the world and also smells powerfully of rotting flesh when in bloom.

This stunning sea creature-shaped home blends into the landscape like a fantasy villa.

This Irish museum in a historic 19th century market pays tribute to the glory of butter.

Huge standing stones mark a site of megalithic mystery.

Once the longest bridge in Ireland, this rusting span sits abandoned and overrun by nature.

The comedy and tragedy of Oscar Wilde is preserved in a Dublin park, captured in a sculpture of colorful stone.

An 80-year-old plane tree is devouring an iron bench at Ireland's oldest law school.