Iconic rock formations that allow for exploration during high or low tide.

The world's longest covered bridge is a quaint and incredible wooden tunnel.

A mysterious spot where the laws of gravity seem not to apply.

A six-person chapel in the middle of Alberta's badlands.

This massive mall has hundreds of shops, an amusement park, and a history of deadly amusement attractions.

The granite head appears to be deep in thought and half buried in the ground.

As if T-rex wasn't big enough, this Canadian monument is four times larger than the real thing.

A mysterious taxidermy man-beast of the seven seas.

Hoodoos, naturally eroded land formations, stand 20 feet tall in the Canadian badlands.

What was to be the world's most secure Cold War document vault ended up as just a few shallow caves.

Few other hotels can rival the grandeur of the Castle in the Rockies.

A simple plaque on the facade is the only reminder that the treaty ending the American Revolution was signed inside.

The celebrated eyesore created by starry-eyed sweethearts.

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.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

France's most famous cemetery, with some of its most curious tombs.

A reversed traffic signal that was once violently misinterpreted as a statement on British-Irish relations.

This Art Deco fortress in upstate New York gives Manhattan's vaunted examples of the style a run for their money.

Protecting the dead from opportunistic body snatchers.

The final resting place of soldiers' loyal canine companions.

The taxidermy remains of the first mammal ever cloned from an adult cell are on display in Edinburgh.

A sweet symbol marks the place where torturous executions were once carried out.

There are plenty of wonderful panoramic vistas in Edinburgh, but not many are hidden smack in the middle of the Old Town.

17th century streets hidden under Edinburgh were once a breeding ground for the black death.