The privately owned cemetery that holds room for Washington's finest when they step down from life.

The actual model from the original "Star Trek" series is now on display at the National Air and Space Museum.

The beloved statue at the National Academy of Sciences is oh so inviting to sit on.

This imposing Masonic temple a mile from the White House was the first public library in Washington, D.C.

The romance of early commercial flight still fills this Art Deco destination.

This isn't your average roadway—it's actually a National Park and a transportation pioneer.

Soldiers were buried next to Lee's house in the center of Arlington Cemetery to dissuade the general from reclaiming his property after the war.

This stately building in Alexandria, Virginia was built by Freemasons to honor one of their most famous members.

This 29-ton granite ball spins around at the slightest touch thanks to a scientific phenomenon.

A secretive collection featuring objects that were designed specifically for U.S. intelligence operations.

A tiny survivor of the Donner Party disaster.

An abandoned lot littered with concrete debris was once the home of the world's first female railroad president.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

Each year these high desert hills are absolutely covered with poppy flowers in a surreal show of nature.

Thousands of turbines whir at the origin of North American wind power.

An alley covered with 20 years of bubble gum.

Quite simply the largest tree in the world (by volume).

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

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

A trash dump made beautiful by nature's power.

Life in this isolated, hilltop lighthouse was lonely, but it sure was lovely.

Haunting and beautiful trees, doomed to die.

The oldest lighthouse on America's west coast no longer needs keepers, yet they maintain the site anyhow.

The interior of the Overlook Hotel in "The Shining" was based on this Yosemite original.