This study room in the New York Public Library saw the creation of one of contemporary America's greatest traitors.

Commemorating the spot where the famous scientist fed his pigeons.

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

Long the exclusive domain of birds and vagabonds, this little-known Central Park peninsula is open to the public once more.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

One of the last few places in Manhattan that employed a pneumatic systemic keeps it on display.

This translucent sculpture represents a quintessential component of New York City's skyline.

A memorial to the first person killed by a motor vehicle in the Western Hemisphere.

This whimsical group of statues is a favorite of children who love to climb all over Lewis Carroll's beloved characters.

Tucked away amidst some of the most famous addresses in the world is New York's only fraction of a street.

The name of this tiny pocket park tucked between two buildings on Manhattan's Upper West Side is Latin for its location: "seventy-one."

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

The painting on an aptly named street honors the 1980s slasher movie.

Tintin's creator is celebrated in an immersive museum that's an astounding work of modern art.

This massive memorial commemorates those who died in the Manchester Arena bombing.

The arch that celebrated the completion of the Lincoln and Victory highways.

This beloved roadside attraction welcomes visitors with his signature neon smile.

The broken skateboards that became a poignant memorial to a murdered skater.

These official units of measurement—including chains and perches—lie hidden beneath tourists' feet in a popular London hub.

This London pub hides a peculiar secret: a recreation of the rooms shared at 221b Baker Street by Sherlock Holmes and Dr. Watson.

England's most famous front door has an accidental doppelganger.

The fences outside some of South London's estates are made from recycled World War II stretchers.

A closed London rail station created to cart away the dead still bears the marks of attempts to make it less morbid.

Legend says these colorful, invasive residents are the descendants of birds released by Jimi Hendrix.