At Washington's Dulles Airport is a satellite museum (no pun intended) with three quarters of a million square feet of aircraft history.

On the side of a Virginia highway, a collection of monuments commemorates an 18th-century trek through the Blue Ridge Mountains.

An organ located deep within a cave, whose "pipes" are the geological features of the cave itself.

A three-story tower of books about Abraham Lincoln is one of the more unusual monuments to the president.

Perhaps the most scandalous statue of America's first president.

The oldest continuously operating fish market in the United States.

This rusted car found in Petrified Forest National Park's Route 66 exhibit may be the most photographed abandoned car in the country.

Most-visited and most-photographed slot canyon in the American Southwest.

A sharp bend in a dramatic river canyon cut through red rocks.

This unique art installation used boiler tubes from a decommissioned power plant to resemble Antelope Canyon.

When it was built in 1929, this historic bridge was the only place to cross the Colorado River for 600 miles.

An homage to everyone's favorite prehistoric cartoon family.

A pair of giant roadside arrows are all that remains of a former Route 66 trading post.

The story of Two Guns, Arizona could easily be described as a Shakespearian tragedy on Route 66.

This public square capitalized on a single Eagles reference to bring some life back to an Arizona town.

One of the final grand railway depot hotel complexes is slowly being restored to its former glory.

A motel dedicated to Southwestern nostalgia.

See massive fossils that are over 200 million years old in northeastern Arizona.

This abandoned bootleg attraction was built to cash in on the popularity of classic TV show, F Troop.

The old Route 66 town straddling Texas and New Mexico died along with the Main Street of America.

This constitutionally sound Muffler Man harkens back to the days these attractions were a must-see.

A town pays homage to its namesake.

This gravity-defying rock formation is one of Big Bend’s natural wonders.

This old abandoned sign flickers to announce a motel that isn't even there.