This museum of Hawaiian and Polynesian culture is the legacy of the last descendant of the Kamehameha Dynasty.

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

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.

Race through the maze, get your name on the sign.

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.

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

This black shoreline is made up of exploded lava particles.

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

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

A beautiful little museum hidden away in the heart of Barcelona holds a treasure trove of Ancient Egyptian artifacts

Gaze upon chocolate sculptures depicting everything from chariot races to Gaudí's famous church at this shrine to sweets.

An eclectic collection of thousands of items owned by the sculptor Frederic Marès.

On the wall of this medieval walkway, a symbol of the Spanish Inquisition.

A stately palace has been converted into the world's largest cannabis museum.

This fountain was designed to honor the man who helped bring water to Barcelona.

Barça football fans might see the insignia hidden in a church window as a divine sign.

This store decorated with Japanese and underground pop culture items has been the centre of Barcelona alternative fashion scenes for more than a decade.

Three generations of intrepid collectors display their curious artifacts in a homemade museum right next to the caves they discovered.

Despite his legacy of work in Spain, Cuba, and Florida, the larger-than-life writer's grave is a simple affair tucked in an Idaho cemetery.

A volcanic core jutting above the plain between the Snake and Boise Rivers, a marker identifies the reference point for all U.S. Government Surveys in Idaho.

These black pillars of volcanic basalt seem to call mountain climbers with an unbreakable siren song.

This former shopping center now acts as the eccentric lair of the Venezuelan secret police and their shadow prison.