The longest enclosed pedestrian bridge in the world spans 14 lanes of traffic and six rail tracks, all while lighting up the night sky.

The bronze uniforms commemorate the vital role of women during World War II.

A faded reminder of what was once a common sight in London during the Blitz.

At almost 1,000 years old, this is the oldest known door in all of Britain.

A 1975 bylaw prohibits the construction of any building that would block the view of this Gothic Revival church.

The nude sculpture on this fountain shocked conservative townsfolk when it was first unveiled, but not as much as the dead body found in it decades later.

This building's metal facade is the last of its kind in all of Canada.

This colorful creation wasn't always a welcome part of Toronto's Moccasin Trail Park.

This "Palace of Purification" has made many film appearances as a dark and sinister headquarters.

This exemplar of modernist architecture is meant to captivate and inspire students of the Cooper Union.

There must be a pun in this haystack somewhere...

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

A commemorative plaque hides a door that leads down to the New York Public Library's underground book bunker.

Commemorating the spot where the famous scientist fed his pigeons.

Where the legendary Orson Welles got his theatrical start before "Citizen Kane."

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

This 1967 experiment in modular architecture was designed to be a new model for urban living.

A Montreal deli that was so beloved that it was allowed to circumvent their laws of language.

One of the world's largest collections of rare medical texts and ephemera.

A grand Gothic Revival basilica with stained glass depictions of Montreal's religious history has only one soul resting in its crypt.

Immortalized in bronze, this frazzled student will be glued to his screen for centuries.

The only example of a Paris Métro sign in use at a subway station outside of the French capital. 

Its columns were all carved from the same white oak tree.