The eerie remains of one of Ireland's oldest castles, said to be haunted by the ghost of a woman who brings ill fate.

For over a century, it has been a tradition to raise a flag at the top of this 450-foot sandstone pillar on the 4th of July.

An unassuming island in the middle of the Hudson that hosts campers, including Aleister Crowley.

An abandoned castle owned and ignored by Masons carries a cursed history.

A UFO scrapyard in the California desert.

Ghost stories surrounded this “castle,” the only structure from a huge mansion that was never built.

The longest step street in the city.

Inspiring Herman Melville and Henry David Thoreau, Mount Greylock in western Massachusetts is the highest point in the state at 3,491 feet above sea level.

Would you spend the night in Japan's deepest train station?

A regular looking rock with an unbelievable history.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

An architectural experiment in the Lower Ninth Ward, this row house is capable of floating as high as the Katrina floodwaters.

This ancient holy well is older than much of the city that surrounds it.

Allegedly haunted by Walt Disney himself, this inconspicuous lamp is always kept lit in his honor.

The final resting place of the great navigator, or maybe his brother.

A mysterious, weather-beaten bus lies on the coast of Harris, enticing the curious to investigate.

The "Fun Spot of the Desert" is now a haunting ruin, and a reminder that putting a water park in a desert is a bad idea.

Hundreds of pelicans call this island no larger than a car their home during the summer months.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

Only a few pieces remain of the structure that carried people and goods across the Thames for some 600 years.

Every Saturday morning, this microbakery fills up with freshly baked pastries and sourdough breads.

A lone torii arch stands on a coastal rock where a deity is said to have landed.

In one of the smallest countries in the world stands an original Salvador Dalí sculpture.

This ancient well once held a top-secret royal meeting chamber.