San Francisco's newly reopened hands-on science museum.

A second generation sun-powered marvel lights up the night.

The magic's in the hole!

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

One of the Seven Wonders of the Modern World holds the world's tallest metal staircase.

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

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

A monument celebrating the idea of reaching inaccessible places.

Manatees congregate around a power plant's discharge canal where the water is especially warm.

This unassuming cheese empire in rural Oregon churns out more than 150,000 pounds of cheese each day.

Only known mainland rookery of the threatened Stellar sea lion.

According to legend, this rock represents a young girl trapped by an evil ocean spirit.

A collection of colorful dinosaurs hidden in an actual rainforest.

This 19th-century museum inside of a lighthouse is only accessible during low tide.

A lighthouse built to save lives that took quite a few with its treacherous location.

Beneath the southern end of the Golden Gate Bridge is the “Gibraltar of the West Coast,” a fort built to protect the San Francisco Bay from naval attack.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

This museum looks at the history of one of America's most famous prisons and most beloved albums.

Eastern zen meets Western grit in these four little trees growing out of a rock on Lake Tahoe’s Nevada shore.

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

The arch that celebrated the completion of the Lincoln and Victory highways.

An iconic 1960s theater with a Buckminster Fuller-style geodesic dome.

This former New Jersey bus now exists as a public art exhibit.