A giant pineapple, a symbol of hospitality, and an amazing vacation rental option.

This Greek temple, open only an hour a day, was the site of a war of tastes between an architect and an artist.

This attraction is devoted to the wonders of steam power and features a replica of one of its most public disasters.

This ancient stone necropolis is in danger of disappearing.

Edgar Allan Poe's old dorm is now a shrine to the author's legacy.

A rotting air force base is now home to rare birds and scarce plants.

Abandoned power station once home to a squatter community, now being developed into an arts center.

A terrific purveyor of natural history objects and curios.

Hear the tales of New York's most notorious criminals.

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

Deep under Manhattan is the largest construction project in city history. So far, the project has taken the lives of 23 workers, or "a man a mile."

Visit the site of a subway powered by nothing more than air--and lots of it.

This beautiful building in the heart of Manhattan's Financial District was empty for decades.

Touching mementoes from those who didn't make it back from World War I still hang in one of New York's oldest bars.

This unusually shaped mountaintop tower looks like a UFO floating over the city.

One of the largest sculpture collections in the U.K. features history's greats, from Bob Dylan to Galileo, in bronze.

Condemned US Navy seaplane control tower turned officers’ club sits atop Yerba Buena Island.

This historic tower in the California desert promises visitors a "vortex of good vibes".

Behind this beachfront shop lies a spectacular, colorful sea cave with an equally colorful past.

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

Lucha Libre (Mexican Wrestling) themed taco shop.

Macabre astrological automaton clock dating to the late 1400s.

During prohibition, corrupt city officials ran drinking dens under the streets of Downtown Los Angeles.

The only swimming pool listed on the National Register of Historic Places is emptied and refilled each day with naturally filtered water.