These picturesque Hawaiian falls are home to a rare species of fish that uses a special sucker to climb up cliffs.

A tunnel of hardened lava along Maui’s famous Road to Hana.

Earth's tallest volcano is sacred to Native Hawaiians, and home to a dozen world-class observatories.

A tiny wilderness cemetery commemorates the deadliest episode of the Klondike Gold Rush.

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

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

The stickered marker pinpoints where the only maintained road in the United States crosses into the polar region.

Buy your friend a drink or staple some cash to the wall for the next guy at the Salty Dawg Saloon.

A giant poultry statue immortalizes one of Alaska's more humorous town names.

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

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

A trading post in the North Pole where children send letters.

Four-story concrete hotel never opened to customers.

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

The longest and widest floating bridge in the world.

This famous bridge twisted itself into oblivion, but not for the reason you might think.

Site of the greatest known waterfall that ever existed.

A surreal landscape where fanged rocks rise from the ground and the ocean feels like a great mystery.

The highest point in Washington state is a volcano covered in glaciers.

A memorial for the mustachioed record-setting runner.

Tens of thousands of tiny birds swarm into one school chimney every fall.

A rugged lava field dotted with molds of the ancient pines that were growing when the volcano erupted.

This gorgeous beach hides behind two headlands in Oregon's Ecola State Park.

Two massive rock outcroppings on the Oregon coastline.