A rare tour of a commercial jet assembly plant, held inside one of the largest buildings in the world.

Former farm staffed by mental patients is now a public park.

The longest spit in the United States ends at a lighthouse in the Strait of Juan de Fuca.

Stroll through a wonderland of stupendous moss-covered trees.

A nearly abandoned 19th-century town on the Palouse.

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

An idyllic swimming pool tells the tale of Hemingway's trouble with women.

A monument celebrating the idea of reaching inaccessible places.

The highway's southernmost spot is a beloved local attraction.

The smallest post office in the United States is no bigger than a broom closet.

In the depths of the Everglades, one man has dedicated his life to studying the elusive Skunk Ape.

The sign that drew attention to a young boy's cucumber stand is now the name of his fruit superstore.

An authentic replica of an Asian temple and garden hidden amongst the natural beauty of Hawai'i.

Race through the maze, get your name on the sign.

The air force base preserves its scars from the Japanese attack on Pearl Harbor.

A glass display case holds the document that ended the Second World War—which one person signed on the wrong line.

Home to the deepest rift anywhere on Earth.

Supposedly Satanic numbers adorn this preserved submarine sail.

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.

A smoke stack so large, the Washington Monument could fit inside!

A glimpse into the "Logging Capital of the World" at a time when there was far more forest and far less machinery.

The graffiti-covered ruins of an abandoned trading post in the middle of the Navajo Nation.

This raised bulls-eye visible from space was the subject of an intense geologic controversy.