Cold War missile launch site which has been converted to a public park.

Maybe the only missile installed in a public park, this Cold War leftover was one of the first to carry a nuclear warhead.

The remnants of an early American attempt at missile defense.

This titanic java kettle is one of the many kitschy landmarks located along America's OTHER famous highway.

An abandoned stretch of highway, deteriorating next to the operational one.

A train station that was abandoned by the coal industry and was later converted into a cocktail bar.

A crumbling Beaux Arts monument to the Bay Area's age of rail.

Elevated freight railway turned wildly successful urban park.

The National Railway Museum in York is the largest railway museum in the world, attracting almost 1 million visitors per year.

This long, dark tunnel is open to hikers, but those without lights are known to get confused even on the straight path.

The only arched bridge made of stone on the entire Mississippi River.

The world's largest wooden trestle stretches across this desert canyon in Anza-Borrego Desert State Park.

This historic railway museum may have lost its passengers but not its love for trains.

A 300-yard long natural tunnel runs through a ridge deep in the Appalachian Mountains.

Historic funicular railway, believed to be the shortest railroad in the world.

Ruins of a once-prized railroad station in New York.

Hidden in plain sight on the Hudson River is an abandoned train station where nature has taken over.

A lonely house representing railroad history tells the stories of those who rode the rails.

"You don't need a rocket scientist to build a steam engine, but we've got one." -Museum docent on the credentials of a restoration volunteer.

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

Island ghost town detailing Flagler's folly in building the Overseas Railroad.

The echoes of a railroad town that solemnly mark the end of the line.