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.

Travel this route to explore a canyon crafted by ancient glaciers.

A fake block of cheese remembers a feat of dairy engineering from the Chicago World's Fair.

Thanks to its curved shape, this incredibly durable dam "whispers" to visitors.

A tribute to the man who invented basketball stands in his Canadian hometown.

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

A boardwalk winds above this beautiful bog full of wildlife and a rare type of turtle.

The remains of a paranoid inventor's hidden workshop lie in beautiful ruins amidst a Canadian park.

A sprawling Victorian farm that has been surrounded by a capital city is one of Canada's greatest treasures.

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

This defunct Champlain Oil service station harkens back to the early days of automobiles.

A 1995 memorial acknowledges the tremendous contributions of Vietnamese refugees to Canada.

These prehistoric replicas were based on actual skeletal remains.

This inexpensive lodging house was once a prison notorious for its inhumane practices.

The mastermind behind this palatial hotel perished on the Titanic weeks before its grand opening.

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

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

The metal truss bridge served as the sole entry point to an "isolation island" for smallpox outbreaks throughout the 1870s and early 1940s.

Dedicated to the writer who immortalized the use of the poppy as a symbol of remembrance of those who died in wars.

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

Designed by Buckminster Fuller, this relic of the 67 Expo survived fire and ice.

This crumbling industrial fortress has attracted daredevils, filmmakers, and historians.