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

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

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

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

An aptly-named street near the birthplace of the modern LGBT rights movement.

These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.

The second-tallest water tower shaped like a peach in the American South.

It may look like no more than a full-scale model, but every part of this full Space Shuttle stack had a working role in aviation history.

This 19th-century building inadvertently preserved the handprints of its builders within its walls.

This limestone outcropping was once a ceremonial site for ancient Native Americans.

Knoxville’s architectural icon was the symbol of the 1982 World’s Fair, even catching the googly eye of Bart Simpson.

The alley connecting two of country music’s most historic venues has a rich history of its own.

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

A narrow opening between the mountains of the Amalfi Coast creates a scenic hidden beach.

Five candy-colored villages on the Italian Riviera.

Drink wine handed out through a window as part of an age-old tradition.

The oldest operating pharmacy in the world features 800-year-old recipes.

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

Be on the lookout for the symbolic insect all over the city.

Rotterdammers' dirty minds gave this santa a dirty nickname and cursed it to a life of wandering.

This charming pup is meant to celebrate the youth and stubbornness of the city's students.

It appears as if a man is standing behind this giant airport clock, painting the hands in real time.

Meet 'Big Josh,' the 20-foot-tall muffler man.

The quirky salon doubles as a retro museum run by the world's leading "hairstorian."