This illuminated sign was the first of its kind in Canada and remains a vestige of the Atomic Age.

Now a public art piece, this curious metal feature originally advertised a tinsmith's services.

These locks on North America’s oldest canal are named after a porcine rock formation.

Canada's subterranean Cold War museum has doubled as a movie set.

A book collector's dream, this Toronto bookstore has the world's first "Biblio-Mat," a random book vending machine.

Despite the name, the waters of this Canadian lake are actually blue-green in color.

A contemporary fresco movement illustrates the region's rich history.

This chilly Canadian hotel has a four-month lifespan due to the unusual material it's made of.

This small, ingenious cannon once helped regulate Parisian life.

The video game-themed street art first popped up in the French city.

This life-size replica of the Statue of Liberty's flame is also a tribute to Princess Diana by default.

The tradition of open-air secondhand and antiquarian bookselling in Paris dates back to the Renaissance.

The ruins of a Duke's bucolic dream, where camels once roamed alongside "Dutch" windmills and faux-Italian vineyards.

19th century pendulum and a clock restored by a rogue group of guerilla artists.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

Giant, friendly pelicans in Central London, the most unlikely of places.

A statue marks the exact spot where The Boy Who Never Grows Up made his first literary appearance.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

A mysterious pair of mice eating a piece of cheese is London's smallest public sculpture.

Scattered throughout London are ancient remnants of the city's former bounding wall.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

This hidden park hosts a rogue’s gallery of eccentric architectural obelisks.

Three columns of volcanic rock shoot out of the ocean.