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

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

A once-glowing grotto at the bottom of Waikapalae Wet Cave.

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

Doris Duke's lasting collection of Islamic Art, hidden in a Hawaiian paradise.

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

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

This colonial mining complex is now home to magnificent themed gardens.

Extraordinary sculpture garden created by an eccentric English poet.

A gargantuan crystal kingdom.

These azure waters were thought to lead to the Mayan Underworld.

A lovers' beach, tucked below the surface of the island, provides a safe haven for romance.

This eccentrically decorated palace is replete with grottoes, fountains, tunnels, and caves.

This dramatic landscape hidden on the Isle of Skye looks as though you've stepped into the magical realm.

A lavish 16th-century mansion filled with spectacular staircases, fantastic frescoes, and gorgeous gardens.

This fresco-covered medieval monastery hangs from the side of a steep cliff.