Earth's tallest volcano is sacred to Native Hawaiians, and home to a dozen world-class observatories.

This Hawaiian cattle ranch acts as a museum devoted to the island cowboys that predate the wild west.

Take shelter from Hawai'i's tropical heat under the massive canopy of largest Banyan tree on the island.

This museum of Hawaiian and Polynesian culture is the legacy of the last descendant of the Kamehameha Dynasty.

This former luxury resort in Kaua'i is now an abandoned relic.

This blowhole is supposedly caused by a trapped monster.

This industrial area was the dumping ground for massive amounts of trash, some of which washes up as tiny bits of sea glass.

The stately birthplace of California's statehood.

An old whaling station now serves to give the public a look at the commercial whaling industry, no longer a part of Monterey's economy.

This remarkably simple jail went over a century without an escape.

The oldest U.S. Government building in California, and it's State Historic Landmark #1.

The first safe in this California town had to hold all the gold.

The oldest continuously operating church in California.

A tree grown from astronaut seeds which were exposed to cosmic rays.

Life in this isolated, hilltop lighthouse was lonely, but it sure was lovely.

This municipal playground was co-created by the father of one of the most playful characters ever.

Fake rail crossings mark the site of an influential doctor's demise.

Every year, over 25,000 monarchs overwinter in Pacific Grove.

Haunting and beautiful trees, doomed to die.

This once bustling boomtown hotel is now the hottest spot in Nevada for ghost hunters.

Odd outsider art installations surround a Gold Rush-era ghost town.

The drama of nature in full effect in this Nevada State Park.

Twelve plaster figures inspired by da Vinci's famed painting haunt the desert landscape above a real-life ghost town.

An eatery for UFO seekers on the Extraterrestrial Highway.