A beautiful geyser under environmental threat.

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

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

This road in the Great Smoky Mountains was supposed to assuage a displaced community, but ended up a $52 million dead end.

Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."

Over 20,000 sets of spice shakers reveal the surprisingly telling history of our most basic spices.

A historic presidential getaway on the continental United States' southernmost island.

"We Seceded Where Others Failed."

A monument celebrating the idea of reaching inaccessible places.

The former home of the Nobel Prize-winning American writer is now home to dozens of six-toed cats.

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

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

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

The "lovely red Vega" of the legendary record-settling pilot.

There’s a hidden military meme engraved on the World War II Memorial.

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

Elvis's own personal tropical hideaway.

This Memphis recording studio launched the careers of Jerry Lee Lewis, Johnny Cash, and Elvis Presley.

Every day a troupe of pampered water fowl walk the red carpet to their favorite fountain.

The hotel where Martin Luther King Jr. was shot is now a museum dedicated to his work.

The first statue of Christ sleeping on a bench in the United States confused its affluent parish.

This small exhibit explores the lives of Chang and Eng, the first known conjoined twins.

Andy Griffith's hometown has made itself up to look like the fictional town of Mayberry.

A Nessie-like monster supposedly lurks in this lake.