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

This subterranean oyster house has been the pearl of Grand Central Station since 1913.

A dark patch of the ceiling at Grand Central Terminal which was not restored is still stained brown by tobacco.

The fanciest public restroom in New York City boasts fresh flowers, art, and a classical music soundtrack.

Lady Liberty's first beacon of enlightenment is now displayed in a museum near the statue.

Mysterious 500-year-old tapestries depict a unicorn hunt.

Under a glass sidewalk lie the remains of some of Manhattan's oldest buildings.

Elevated freight railway turned wildly successful urban park.

Bouncing, delightful, mechanical art at the MIT Museum.

One of the last remaining movie theatres in the country that features a rear-projection system.

Each of these gorgeous, intricately decorated rooms is painstakingly crafted to the scale of 1 inch: 1 foot.

These unusual rooms on wheels are holdovers from the 1960s.

Inside, visitors are treated to the rich history of sugar farming and its impact on Hawaiian society.

Version of the French Riviera destroyed by the sea.

Along a California highway is a kind of Jurassic Park made of metal.

Catch a glimpse of the elusive Peninsular bighorns right off of the desert freeway.

Two flush headstones mark the only known graves to be embedded in an airport runway.

This kitschy tavern is also home to rare early editions of "Treasure Island."

At Washington's Dulles Airport is a satellite museum (no pun intended) with three quarters of a million square feet of aircraft history.

Perhaps the most scandalous statue of America's first president.

Look closely and you’ll notice that the color changes a third of the way up the tower.

There’s a hidden military meme engraved on the World War II Memorial.

A derelict bit of infrastructure from the canal that once ran through D.C. is landlocked in the heart of the city.

A former waterfront market is now in the center of town due to some interesting Boston engineering.