This too-low North Carolina railroad trestle is still a notorious big rig executioner.

This Transylvania County city is home to a rare white squirrel population that is descended from an escaped carnival animal.

The U.S. Supreme Court's secret Cold War relocation facility in the mountains of North Carolina.

The highest point in Tennessee, Clingmans Dome bears witness to the ravages of one type of insect.

Granting the right of way to ships over surface traffic since 1917.

A young botanist's horticultural vision realized through a lifetime of planting, tending, and collecting seeds.

Allowing humans and fish alike to migrate from freshwater to saltwater and back again.

Statue of Lenin, from Cold War era Czechoslovakia, now in a neighborhood of Seattle.

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

This former coal gasification plant found a curious second life as a popular public park.

A museum dedicated to the history and exploration of both popular music and science fiction.

A giant Troll lurks under one of Seattle's oldest bridges.

An old vending machine serves up unpredictable beverages from its seemingly magical insides.

This unassuming cheese empire in rural Oregon churns out more than 150,000 pounds of cheese each day.

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

The largest wooden building in the world now houses a fascinating collection of aircraft.

A massive sea stack famous for its appearance in The Goonies.

On the Oregon coast there is a natural hole that seems to be draining the sea.

Authentic gondola hanging from the ceiling, notable mural in the back room.

This stretch of beach along California's central coast is a busy highway for the largest seal in the northern hemisphere.

A sculpture of the famous photograph stands on San Diego's "Greatest Generation Walk."

This Big Sur waterfall drops 80 feet directly into the Pacific Ocean, and inspired the hillside house up top.

This massive redwood tree has a hole in the base big enough to drive through.

One of the most scenic stretches of road in America winds between some of the country's oldest trees.