This shrine to the patron saint of Alaska sits on a small tidal island and was built from the land’s own beach stones.

A monument commemorating the role of Alaska's native Tlingit guides in the Klondike Gold Rush.

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

A classic gold rush hotel can be expected to pick up some ghosts along the way, and the Golden North is no exception.

This "Alaska-style" billboard is over 100 years old.

This small city where almost everyone lives in the same building can only be reached via North America's longest tunnel.

Running under an entire mountain, the longest highway tunnel in North America is kept fresh using portal fans and jet fans.

This super-sized statue is the only public memorial to the deal that ended America's neutrality during World War II.

Once the center of Gold Rush mania, now the starting point for the Yukon Quest sled dog race.

A morbid gateway to an Alaska town prides itself on the hunting history it represents.

The ritual has been performed uninterrupted for nearly 700 years.

Tucked away in the Tower of London is the weapon once used to execute high-profile prisoners.

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

An architectural oddity hides in plain sight on this iconic London bridge.

Montmartre's sole surviving windmill became an iconic landmark for 19th-century painters, artists, and bohemians.

Concrete strongholds stand guard over the Golden Gate.

This lighthouse has been guiding shipping into the Golden Gate since before the American Civil War.

A walk-in working camera obscura produces 360-degree live images of the San Francisco coast.

This private residence was the template for one of the most beloved television homes of all time.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

Beneath the southern end of the Golden Gate Bridge is the “Gibraltar of the West Coast,” a fort built to protect the San Francisco Bay from naval attack.

Frank Lloyd Wright died a year before construction on his largest public project even began.

One of the city's few vendors selling the Sierra Norte's ancestral beverage lies within a hidden farmers market.

An unusually designed bridge from the 1920s was built to withstand the tides and winds of Maine.