Maine's only authentic torri gate celebrates a longstanding international relationship that started with the rescue of four sailors.

The last remaining Shaker community still practices a uniquely communal and utopian version of Christianity.

The whole of Maine's history with the salty little fish is packed into this tiny coastal museum.

A memorial to an ill-fated Holy Land mission once described by Mark Twain as “a complete fiasco.”

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

This whimsical stacked cabin looks like something out of a children's book.

A high school astronomy enthusiast designed this model of our solar system to be traversed on foot.

Four-story concrete hotel never opened to customers.

Considered by many to be one of the most dangerous highways in Alaska.

This exaggerated sculpture resembles a well known feature of Vancouver:

The picturesque remains of an abandoned silver mine slope down to Tagish Lake in the Yukon.

This tiny square mile of Canadian sand was once considered the world's smallest desert.

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

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

A rare chance to get up close and personal with a 13-mile ribbon of ice near downtown Juneau.

The king of U.S. high points towers over every other peak on the continent.

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

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

Originally a brothel during the Klondike Gold Rush, this bar once used dolls to denote when ladies were working.

A historic freight system that found the true gold rush is in tourism.

A historic area for shopping and dining in Ketchikan's former red-light district.

Often mistaken for an office building, inside this venue is an amazing collection of Native Alaskan art.

Known as the “Official Greeter of Juneau,” this dog still welcomes ships and their passengers to Alaska.

A whale of a public art display towers atop Juneau's cruise ship dock.