One of the U.S. Forest Service's only mansions is outfitted with a dinner table for floating food.

A tourist attraction founded around a slumping cabin.

The final resting place of a legendary science fiction author and his fraternal twin sister who died as an infant.

The southernmost point in the United States is a beautiful place to look at but a deadly place to wade in.

This black shoreline is made up of exploded lava particles.

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

Hide from the tourist hordes in these relatively unknown, and unguarded lava caves.

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

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

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

Try your hand at old-fashioned coffee growing at this museum devoted to one of the world's most coveted beans.

This legendary urban waterfall creates a dazzling display of rainbows.

A true treehouse near Hawai'i Volcanoes National Park.

More than 2,000 species of tropical plants call this nature preserve and sanctuary home.

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

Once a year, thousands of naked cyclists flood the streets of a Seattle neighborhood.

This working class sculpture pounds his hammer all the livelong day.

This unique Seattle structure was designed to be the greenest commercial building on the planet.

A commemorative mural in this tiny Ballard park honors the neighborhood's rich Scandinavian ties, particularly with Seattle's Norwegian sister city Bergen.

The historic bar where local ship captains, traders, and gold miners would come together to do business a century ago.

An enclosed rotunda at the Henry Art Gallery in which viewers can look up and see the uninterrupted sky.

This edible park is open to any and all foragers.

The tech giant built three enormous glass orbs in Seattle so employees could work inside a rainforest greenhouse.

A rotting tree in the middle of Seattle doubles as an elaborately-controlled art piece.