The unbelievably opulent home built for an infamous newspaperman.

Housed in a memorial lighthouse, this museum relays the history of surfing, beginning with the antics of royal Hawaiian teenagers.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

A beautiful geyser under environmental threat.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

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

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

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

During the solar phenomenon "Lahaina Noon" this bendy, curvy sculpture forms a perfectly circular shadow on the ground.

The only royal palace on U.S. soil has been a territorial capitol, a military headquarters, and a prison for a queen.

The grand marquee of this abandoned Hawaiian theater remembers the building's elegant past.

These ancient sacred grounds granted amnesty to those who managed to reach them.

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

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

These picturesque Hawaiian falls are home to a rare species of fish that uses a special sucker to climb up cliffs.

This black shoreline is made up of exploded lava particles.

When you visit his grave, be sure to rub the Great Emancipator's nose for good luck.

The “American Gothic" artist's largest works hang in an Iowa State University library.

The highest point in Texas is capped by a big silver pyramid.

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

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

The spot in the Mile-High City that's exactly 5,280 feet above sea level (at least for now).

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.