One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

A beautiful geyser under environmental threat.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

A glimpse at Walt Disney's vision for a "community of tomorrow," in miniature.

The oldest attraction in Disneyland is a prehistoric stump that Walt may have bought for his wife.

Inspiration struck on this seat outside the Griffith Park merry-go-round.

The lead horse on a Disneyland merry-go-round that is older than the park itself.

Allegedly haunted by Walt Disney himself, this inconspicuous lamp is always kept lit in his honor.

World's first "penitentiary," meant to be humane, drove men insane.

Yo, Adrian!

The United States’s oldest funicular railway glides up and down a steep Pittsburgh street.

The last remnants of Fort Pitt also hold the distinction of being the oldest structure west of the Allegheny Mountains.

Known locally as "the giant head," this 14-foot LED sculpture has a photo booth in the neck where you can have a 3D picture taken and displayed.

The home made famous by the 1983 holiday classic is now a perfectly preserved shrine to the movie.

A collection of Witchcraft artifacts and occult paraphernalia started by the leader of the Long Island Coven.

An artist's cute bronze subway sculptures belie his violent artistic past.

The institution is sitting on a goldmine of 21,000 paints, varnishes, pigments, and primers preserved for posterity.

The 28,000-year-old specimen is remarkably intact.

The remains of Martha, the last known passenger pigeon, serve as a tool to educate about conservation.

The story behind this beloved toy—named for Theodore Roosevelt and owned by his grandson—is more complicated than you might guess.

A heroic pigeon that, through a barrage of gunfire, delivered a message that saved over 100 lives in World War I.

The most decorated dog of World War I is preserved in the Smithsonian.

This taxidermy horse was a Civil War hero.

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