This plaque commemorates the call between Alexander Graham Bell and Thomas A. Watson.

It was an experiment to prove that glacial boulders and rocks can be used in constructions and dwelling.

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

This quirky piece of naval artillery has been deafening Canadians for over a century.

The colorful, smiling concrete silos of Vancouver.

This elaborate towering structure was once famed for its revolutionary height.

One artist's love letter to his city and its citizens plays out across dozens of bright murals painted on the sides of decrepit buildings.

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

Tour the dark and beloved poet's former cobwebbed basement, which may have inspired "The Black Cat."

A statue honors the genius who allegedly first took a meatball and made it into a hamburger.

This animatronic Christmas village within an industrial park creates a whimsical juxtaposition.

The Metropolitan Police refurbished the blue box (perhaps not coincidentally) the same year "Doctor Who" returned to TV screens.

Don't get it twisted: This is the oldest pretzel bakery in the United States.

A 19th-century architectural wonder designed by the "father of the skyscraper."

A defunct all-girls college which may be the resting place of H.P. Lovecraft's real-life Necronomicon.

Lake Champlain Bridge, the recently demolished and rebuilt bridge where they filmed "What Lies Beneath".

The home made famous by the 1983 holiday classic is now a perfectly preserved shrine to the movie.

A metal ring in the middle of the road marks the exact spot where the Soviet satellite crash-landed in 1962.

Paranormal activity on the great lakes.

This elaborate High Victorian Gothic structure is one of the world's few 16-sided buildings.

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

Less a museum than a bizarre fantasy world created by artists and engineers.

The Old Courthouse takes visitors on a captivating trip through St. Louis' timeline.

One of the world's earliest skyscrapers.