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

Soaring over the Niagara Whirlpool since 1916.

A 98-room castle in the middle of Toronto that bankrupted a 19th century electricity multimillionaire.

A unique subway station where pillars evoke ancient civilizations.

The giant birds honor two native North American species.

An enigmatic concrete structure in a lakeside Toronto park raises more questions than answers.

One of the largest underground systems runs under Canada's largest urban center.

The tower was originally used as a chimney for the waste incinerator of St Johns Precinct and Market.

This magnificent castle grew from a small Moorish fortress, and reportedly inspired two iconic Disney castles.

One of the few remaining ancient aqueducts described by Frontinus as 'the most solemn testimony of the Empire.'

The world's largest second-hand graces a clock surrounded by constantly changing flower beds. 

CERN's beautiful, bending sculpture is a tribute to the spread of knowledge.

Home of the Large Hadron Collider and the birthplace of the World Wide Web.

Everyone's favorite clay duo immortalized in bronze.

The medieval-looking hammer beam teak roof may be a Victorian vanity, but it's still absolutely magnificent.

One of the largest mechanical models of the solar system in the world.

The castle still holds traces of the abandoned Roman fort it was built atop.

A reconstructed section of a Roman bathhouse sits next to an otherwise ordinary shopping mall.

This massive fiberglass Gulliver turns every visitor into a Lilliputian.

A former fisherman's hut deemed too small for habitation is now a delightful tourist draw.

The original home of the Lego has a huge amusement park dedicated to the iconic plastic toy.

An enormous playhouse designed to look like 21 stacked Lego bricks, with another 25 million colorful Legos inside.

A museum marks and documents the site of the Titanic's launch.

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.