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

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

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

This legendary urban waterfall creates a dazzling display of rainbows.

This blowhole is supposedly caused by a trapped monster.

This narrow coastline trail through the dense Kauai wilderness is among the most beautiful and dangerous in the world.

This monument built by Japanese American immigrants spent decades underground.

A Hawaiian stairway to heaven—that you can't climb.

Hidden behind a YMCA stands the remains of a ceremonial site that dates back hundreds of years, whose ground is still considered sacred to many Hawaiians.

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.

Hiding in plane sight.

A unique set of caves that spits waves back out into the ocean.

This unusual lava tube spouts seawater during high surf.

This mom-and-pop Japanese sweets shop has been serving cloud-light mochi for almost a century.

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

Climbing this abandoned railway leads to breathtaking vistas of O‘ahu.

A series of waterfalls and pools that flow through the 'Ohe'o Gulch and into the ocean.

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