The king of U.S. high points towers over every other peak on the continent.

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

A controversial memorial at the place where Captain Cook met his violent end.

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 legendary urban waterfall creates a dazzling display of rainbows.

Watch the newest land on the planet form before your eyes.

This black shoreline is made up of exploded lava particles.

A beach made of semi-precious green sand on the Big Island of Hawaiʻi.

Ancient paintings known as the "Sistine Chapel of Cave Art."

This rest area is also home to a remarkable petroglyph site.

This railroad magnate's 19th century tower is more than a little bit out of place in the Nevada desert.

Officially named the "Loneliest Road in America," this barren stretch of Nevada road offers almost nothing but sky and open fields.

This Old West eatery along America's Loneliest Road was originally a stop on the Pony Express.

A tree bears footwear on the loneliest road in America.

One of the largest fleets of armored vehicles in the world, sitting out in the California desert.

Two mammoth statues inspired by equally tall tales lure tourists to this roadside attraction.

Canyon walls shrouded in ferns.

The lighthouse central to the 1980s horror classic "The Fog" is, in fact, located in one of the foggiest areas of the Pacific Coast.

More than 700 species live within this murky marvel of a swamp on California's coast.

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

One of the most elaborate displays of Jellyfish is on display at the aquarium.

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

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.