Famously misunderstood wonder of the ancient world

Twice a day, the water of the Petitcodiac River flows upstream in a surfable wave.

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

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

This monster fiberglass crustacean stands watch over the self-proclaimed "lobster capital of the world."

This Canadian road's nickname stuck so hard the city had to keep it.

The purported world's shortest international bridge connects a homeowner in Canada to his backyard in New York.

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

Louise Bourgeois' 30-foot-tall steel spider sculpture.

This water-locked cliff face is covered in hundreds of ancient pictographs.

A massive, fading granite poem is all that remains of one Whitman superfan's tribute to the famous writer.

A mysterious lake provides fresh water without any source, somehow restoring itself from atop its mountaintop perch.

Twice a day this ancient path disappears with the tides, leaving the Holy Island of Lindisfarne out to sea.

The one-time stronghold of the noble Douglas family, now home to ghost sightings and nesting birds.

An abstract monument to a symphonic composer.

A subterranean house of worship carved right out of the bedrock.

An expansive complex of subterranean tunnels is all that remains of one of Europe's most formidable medieval fortresses.

A little sculpture with a large wardrobe.

The site where one of the most famous poems of World War I was composed is preserved to honor the legacy of the work.

These medieval tunnels provided water to the city above through centuries of civil war and plague.

This seemingly cursed monument is dedicated to one of Canada's great war heroes.

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

This unusual structure may be on its way to becoming a cultural landmark in Toronto.

This massive, ancient stone was disassembled and then put back together again.