A 30-mile-long glacially-carved canyon leads to a massive pair of glaciers.

The only house built with a turret, crenellations, and a moat in Palmer, Alaska.

The facade of this relic from the Klondike gold rush is decorated with over 8,800 pieces of driftwood.

One of the last remaining structures built by a community of African Canadians in the 19th century.

A marvel of engineering built to prevent annual floods from devastating the city of Winnipeg.

This extensive nuclear fallout shelter built from 42 school buses could house 500 people in its tunnels.

This "Palace of Purification" has made many film appearances as a dark and sinister headquarters.

Hauntingly beautiful totem poles left by the Haida.

This knick-knack-covered house (complete with a matching van) is a charming oddity in the middle of a modest downtown neighborhood.

Locals transformed this Canadian evergreen into a secret hangout with spectacular views of Vancouver's skyline.