With a facade that measures just 107 centimeters, this five-story building is one of the skinniest in Europe.

Of the many chalices in the running for the Holy Grail, this one in Valencia Cathedral sure looks the part.

This amazing example of Valencian Art Nouveau looks more like a cathedral than a public market.

This house's itty bitty size means no humans allowed.

Built hundreds of years ago this downtown iron barrier once protected a much despised king.

Great place to have a drink and a bite to eat in an atmosphere laden with New York's Bohemian past.

A three-story copper skybridge connects two Manhattan buildings with Art Deco luxury.

A miniature rainforest is growing inside of a Midtown Manhattan office building.

A Hawaiian stairway to heaven—that you can't climb.

This narrow coastline trail through the dense Kauai wilderness is among the most beautiful and dangerous in the world.

A unique set of caves that spits waves back out into the ocean.

Statue in Salem of the woman who starred as the witch Samantha in the sitcom "Bewitched."

The only structure left with direct ties to the Salem witchcraft trials of 1692.

The final resting place of President Chester A. Arthur and hundreds of others from Revolutionary War soldiers to poets, politicians, and painters.

This relic of 19th-century infrastructure is one of the few remaining coal gas storage tanks in the U.S.

Down a pint of ale where the Bishop of Ely's servants slept in 1546.

The iconic Manhattan corner that was once the site of the Beastie Boys' fake clothing store.

For almost a century, this East Village newsstand has served egg creams to beats, hippies, punks, and everything in between.

This 220-year-old house is a reminder of New York City's Dutch past.

A once grand hotel is being retaken by the wilderness it once capitalized on.

One of the most scenic falls in Massachusetts has a history of death and grim legend.

Bangkok's men with dangerous jobs come here in search of protective talismans.

A beautiful multicolored mound formed by the mineral deposits of the Orenda Spring.

The original Uncle Sam was actually a New York meatpacker who is buried under this historic grave.