A hidden courtyard houses early 20th-century plaster masterpieces.

A futuristic-looking beach house built for the owner of a snack food brand.

Built for an exposition in 1915, these horticultural displays have stood the test of time.

This coastal cavern is associated with the Hawaiian god of creation.

A glass display case holds the document that ended the Second World War—which one person signed on the wrong line.

Images chiseled into the basalt here date back an estimated 300 years.

Ten acres of the Kula Forest Reserve make up this wondrous state park.

This WWII plane died a quiet death, and is now a garden eel playground.

A cooled lava flow from the Haleakalā volcano formed these surreal-looking columnar basalt structures.

A true treehouse near Hawai'i Volcanoes National Park.

A prehistoric landscape hidden in the cliffs of Maha'ulepu.

Submerged lava formations create incredible waterworks.

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

The island of Lanai in Hawai'i is a paradise for cats and cat lovers.

This black shoreline is made up of exploded lava particles.

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

A beach made of semi-precious green sand on the Big Island of Hawai'i.

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

A tunnel of hardened lava along Maui’s famous Road to Hana.

One of Indiana's only natural sandstone arches is nestled between resort ruins and an old Boy Scouts camp.

A set of tall pillars and alcove-like rooms that are significant to the Miami people of Indiana.

Indiana's oldest sternwheel paddleboat has been plying the placid waters of Webster Lake for 90 years.

Historians and hobbyists head to this former French outpost for the annual Feast of the Hunters' Moon.

A wartime promise becomes a shrine to Our Lady of Lourdes.