An underground city of salt.

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

Curious crustaceans support an obelisk from ancient Egypt that now stands in modern-day Central Park.

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

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

Once the tallest building in the world and the site of "the highest dinner ever held in New York" this building now holds the most expensive penthouse in the city.

The original toys that inspired the beloved children's stories are on display at the New York Public Library.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

Elevated freight railway turned wildly successful urban park.

Try not to get slimed in Tribeca.

The seat of Buffalo government is a gorgeous Art Deco palace.

A gorgeous mural outside a beloved D.C. restaurant pays homage to famous Black Americans.

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

The monument's pointy aluminum tip has been melted down by repeated lightning strikes.

Those with a sharp eye can find the hidden image of a German Shepherd on the memorial's Mural Wall.

Decades before the scandal, this staircase on the river was a literal "water gate."

This imposing Masonic temple a mile from the White House was the first public library in Washington, D.C.

The United States Capitol's former columns still stand.

This distinctive Crescent City tradition dates back to the days of horse-drawn carriages.

A small park on Bourbon Street features life-size bronze statues of New Orleans musicians.

This historic "City of the Dead" lies prominently in the center of New Orleans' famous Garden District.

The oldest cemetery in New Orleans, resting peacefully for over 200 years now.

The final resting place of New Orleans' most famous voodoo priestess.

Elvis's own personal tropical hideaway.