The capitol city's oldest existing cemetery.

A tiny survivor of the Donner Party disaster.

The California capital city once stood 10 feet lower than it does today.

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

An underground mansion with fruit-bearing trees and grapes growing beneath the surface of central California.

A B-17 bomber stands as a memorial to the residents of Tulare County who served in World War II.

The Zalud family experienced a number of tragedies in one decade, giving rise to rumors that the 19th century house is haunted.

The Empire Mine is "one of the oldest, largest, deepest, longest and richest gold mines in California."

A fine mixture of the old and the new topped with an art deco neon spire.

Built in 1895, this bed and breakfast was once a hospital that served an early 1900s Gold Rush boomtown.

A rich history stashed behind an unassuming door in the heart of Gold Country.

Established in 1853, this crumbling cemetery sits forgotten on the corner of Church and Chapel in Gold Country.

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

The now-abandoned tunnels were built for the transcontinental railroad on the route where the first wagon train entered California.

A statue commemorating the heroic life of a Viking postman who was the Godfather of California skiing.

One woman's Viking Castle on Lake Tahoe.

This former boomtown "island" is now submerged below Folsom Lake.

This 19th century hydroelectric powerhouse was the first of its kind.

An old-timey medicine shop that once served Chinese laborers during the Gold Rush is still open for business to this day.

One of the oldest reform schools in the United States, home to wayward boys such as Merle Haggard, now abandoned.

Where the writer penned his famous story about a jumping frog.

A cozy bookstore is tucked within an old gold mine shaft beneath the cafe and ice cream shop.

The Magical World of George Phar Legler.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."