A trading post in the North Pole where children send letters.

A 200-year-old bar in the historic French Quarter refuses to give up its place in history, nor its role in securing ours.

The final resting place of New Orleans' most famous voodoo priestess.

Enormous lake at the bottom of a unique cave system.

Abandoned railway line circling the city of Paris.

For two weeks every June, fireflies in the Smoky Mountains perform an astonishing light show.

An Ecuadorian haberdashery that sets the record straight about the so-called "Panama" hat.

An elaborate shrine dedicated to the four corners of the world unfortunately misses its mark.

This ancient Roman bridge and aqueduct still stands as a wonder of classical construction.

This life-size replica of the Statue of Liberty's flame is also a tribute to Princess Diana by default.

This historic island prison holds one of the dungeons from the Count of Monte Cristo even though it is a work of fiction.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

Notorious artist squat renovated into legal studios.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

This 15th-century island fortress later served as home to the executioners no one wanted to live near.

An ancient neolithic tomb that only sees the sun twice a year.

This Italian-style temple replica has been threatening to fall off the Irish coast for hundreds of years.

The ruins of this medieval castle in Northern Ireland have inspired artists from C.S. Lewis to Led Zeppelin.

Northern Ireland's Brobdingnagian stepping stones.

This short bridge is the only thing connecting a tiny Irish island to the mainland.

The atmospheric road was never meant to be so creepy.

All you ever needed or wanted to know about America's favorite whiskey, but not a drop to drink.

The world's longest known cave system.

The first full-scale tunnel built in America is short but scenic.