This vast kitty-themed collection illustrates the history of human-cat interaction.

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

The rogue roots are gradually consuming some of the historic marble grave markers.

An oft-overlooked, magically musical monolith that stands majestically between Arlington Cemetery and the Iwo Jima Memorial.

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

Manhattan's deadly West Side railroad, which killed hundreds of New Yorkers, is remembered by this simple plaque.

Elevated freight railway turned wildly successful urban park.

Commemorating the spot where the famous scientist fed his pigeons.

An homage to Jackie Gleason's bus-driving character from 'The Honeymooners.'

A Bibliophile's Dream.

Fragments of architectural wonders from around the globe are embedded in the newspaper building's walls.

The last masonry skyscraper ever built reveals a transitional moment in architectural history.

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

Once at the center of U.S. finance, the historic Trading Room was meticulously recreated piece by piece and rebuilt in the Art Institute.

Once a favorite playground for the world's most illustrious guests, Hotel Nacional's secret weapons and bunkers reveal a more menacing side to its golden history.

A focal point of the Cuban government, this city square features one of the most iconic images in the country.

A historic landmark and museum filled with curious objects representing the history of Key West.

A historic presidential getaway on the continental United States' southernmost island.

Florida's oldest bar was once a morgue, complete with a hanging tree and gravestones.

The birthplace of American international flight service has been turned into a celebrity's microbrewery.

Here’s how Robert the Doll earned his reputation as the most haunted doll in the world.

The highway's southernmost spot is a beloved local attraction.

The former home of the Nobel Prize-winning American writer is now home to dozens of six-toed cats.

A monument celebrating the idea of reaching inaccessible places.