The mysterious wonder of an underground waterfall is illuminated by multicolored lights.

This forgotten graveyard in rural New York State once served a pioneering hospital.

An eccentric playboy's astounding natural history collection.

Washington's iconic carousel has a nice piece of Civil Rights history.

An overlooked memorial honoring the local Washington residents who died in World War I.

Those with a sharp eye can find the hidden image of a German Shepherd on the memorial's Mural Wall.

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

A local prank turned town icon.

A museum dedicated to the history & joys of the trail & your best chance to see hikers throwing up ice cream.

A dramatic, 360-degree recreation of Pickett's Charge in the Civil War.

The largest university building in the West is a gothic masterpiece containing dozens of theme rooms based on different countries.

An 18th-century Catholic church converted into an eccentric temple of music and bacchanalia.

This lush forest valley was once mined for lumber to the extent that it was once nicknamed "The Pennsylvania Desert."

A tradition unlike any other, this marks the site of the annual Groundhog's Day tradition.

When the Austin Dam failed it destroyed much of Austin...and then it failed again.

Bits and pieces from the ill-fated Donner Party's winter cabins.

A vertically floating hemlock controls the waves and weather at Crater Lake.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

Canyon walls shrouded in ferns.

Two mammoth statues inspired by equally tall tales lure tourists to this roadside attraction.

This ultra-modern California span is actually a titanic solar clock in disguise built by famed architect Santiago Calatrava.

This Taoist temple is the oldest continuously used Chinese temple in California.

Trails through lava-carved tube-caves display sparkling bacteria and a rich history.

This abandoned motel doesn't welcome guests anymore, but decay and a creepy atmosphere still call it home.