Touching mementoes from those who didn't make it back from World War I still hang in one of New York's oldest bars.

A famous alternative culture epicenter and where Joplin serenaded young hippies.

This mile marker stands at the unofficial end of a highway built to defend the United States from a Japanese invasion during World War II.

A raised boardwalk winds through a thicket of stunted, century-old trees no more than nine feet tall.

Resting place of Hollywood's immortals is also site of summer film screenings.

This concrete tangle of square pipes has stood as a proud thorn in the city's side since the '70s.

This gas station offers wine tastings and craft beer.

This ramshackle ghost town is comprised of mining-era buildings collected from around the region.

America's oldest Italian restaurant is a San Francisco institution.

This rooftop sign has been confusing Milwaukee-bound airline passengers for decades.

This hidden amusement park is a magical escape for kids and kids-at-heart.

The only standing town in the United States that early Chinese Americans built for themselves.

A plaque and memorabilia collection mark where A&W got its start.

Standing in a state of "arrested decay," this ghost town allows for a detailed peek into Gold Rush life in an unusually harsh climate.

A ghost town in a remote corner of Oregon hosts a touching tribute to Sacagawea’s son.

A remnant of the last Ice Age, this lake is surrounded by fascinating rock formations.

This spectacular track has run continuously since 1882.

The oldest operating steam locomotive in Canada runs along this heritage railway.

An ancient fortification lives on in this Chinese city.

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

This statue was given to France by the United States to commemorate the centennial of the French Revolution.

Art Deco stylings conceal the true nature of this bridge.

One of the oldest used bookstores in the U.S. has been selling antiquarian treasures since 1825.

L. Frank Baum wrote part of the "Wizard of Oz" series in this wooden Victorian beach resort.