The New York hotel where tragic visionary Nikola Tesla spent his final hours, destitute and alone but for the pigeons.

Built as a gift to the hottest tastemaker of the time, these hidden quarters remain an Art Deco showpiece.

A bit of retro transportation flair preserved in the world's largest department store.

There are owls with glowing eyes in Herald Square.

Wall Street has a new heroine, a bronze statue of a small but fierce girl.

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

This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

Pulled from the rubble of one of the worst modern tragedies, a steel crossbeam became a symbol of hope for New Yorkers.

The last living thing to come out of the rubble after 9/11 is now a symbol of hope and resilience.

This sculpture by artist Fritz Keonig survived the 9/11 attacks and now stands as a monument to the victims.

This Gothic castle was inspired by Erik the Red's Viking residence at Brattahlid in Greenland.

Ornate and macabre headstone in one of the country's oldest cemeteries.

This monument on Breed's Hill proves that one of the most famous battles of the Revolutionary War is misnamed.

The site of Paul Revere's historic two lantern warning.

The American Revolution was galvanized into serious action due to the tragic clash with British soldiers that occurred at this location.

The remnants of a Gilded Age elegance preserved in the middle of a stark modern tower.

Mrs. Mallard and her brood are a beloved fixture in Boston Public Garden.

A men’s restroom became a sandwich shop.

The nation's second-ever First Lady urged the founding fathers to "remember the ladies."

Plans for this peninsula included houses, the United Nations Headquarters, and a nuclear power plant. When none of them worked out, it became an expansive park.

Oldest church in the United States that is still in continuous use.

The only Bahá'í house of worship in North America and one of only a handful worldwide.

An antiquated German apothecary on Chicago's North Side.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.