I Street Bridge is the heaviest swinging center bridge in the United States.

This 19th century train workshop is a treasure trove of railroad history.

This museum remembers the tough Mormon trek across America through an intriguing array of artifacts.

Curiously, this large sporting goods store features 14 wax representations of American presidents.

These once-beautiful historic graveyards are set against the barren Virginia City hills.

One woman's Viking Castle on Lake Tahoe.

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

This Rhode Island mansion was a stand-in for the exteriors of Collinwood in the original "Dark Shadows" series.

Holding multiple historical boats and an entire 19th century village, this New England attraction is the largest maritime museum in the world.

This museum collects over a century of automobile history including the iconic car from The Muppet Movie.

Statues of Ramona Quimby, Henry Huggins, and Ribsy the dog in the park where their adventures "really happened."

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

A trash dump made beautiful by nature's power.

Small Nevada town embraced its designation as the "Armpit of America" with an Old Spice-sponsored festival.

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

A massive ultra-modern church presents a science-fiction view of Catholicism's inclusive future.

This Oakland fairytale kingdom, fiercely devoted to childlike whimsy, was an early inspiration for Disneyland.

Bonsai garden in Oakland is curated by the first non-Japanese female bonsai master in the United States.

An abandoned convention space that has been left to the homeless and the radical.

Playable, historic pinball machines fill this Alameda museum.

Genesis of modern hydroelectric power.

A popular tourist cave with a dark past.

One of the last free public hot springs is decorated with hippie art.

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."