A tunnel that brings more than a century of history to life from the deepest parts of the Niagara Gorge.

This Niagara Falls tourist trap is a world bright with neon and curiosities that will inspire love, hate, or a mixture of both.

The Victorian-era greenhouse is stuffed with tropical plants, and open 365 days a year.

Known as "Toronto's Flatiron."

A botanically themed auditorium blooms within the world’s last operating double-decker theater.

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

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

A fantastic place to see murals, and an important location in the history of Toronto's legal street art scene.

An abandoned 1970s theme park that has been turned into a space for waterfront walking.

305 homemade stone stairs wind their way up the Hamilton escarpment.

With well over 130 falls and cascades to brag about, Hamilton, Ontario has earned its stripes as the waterfall capital of the world.

Known as the "Kissing Bridge" for its privacy, it also happens to be the last covered bridge in Ontario.

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 stretch of beach along California's central coast is a busy highway for the largest seal in the northern hemisphere.

The unbelievably opulent home built for an infamous newspaperman.

A massive volcanic plug is now a protected area that hosts a number of bird species.

An alley covered with 20 years of bubble gum.

A hotel and restaurant serving as the mecca of kitsch.

Quite simply the largest tree in the world (by volume).

The second-largest giant sequoia in the world.

The world's largest wooden structure.

Spain's unique Mosque-Cathedral has been a place of worship for both Muslims and Christians throughout its history.

A curious carving hides on a marble column in the Mosque-Cathedral of Córdoba.

Single runway interrupted by a busy road that cuts across its middle.