Once the site of the Hawaiian monarchy, this building was originally designed as a palace.

The only royal palace on U.S. soil has been a territorial capitol, a military headquarters, and a prison for a queen.

A 1940's shrine dedicated to drowned fishermen on the outskirts of Honolulu.

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 ancient Hawaiian henge may have been an early star chart.

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

The famous aviator's final resting place is a study in natural beauty.

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

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

A pair of mutilated bronze octopuses slump at the base of the monument honoring California's admission to the U.S.

This residential door allows San Francisco muggles a glimpse at the wizarding world.

This unique religious structure is an architectural gem with arresting ocean views.

This giant statue is the product of a mixture of corruption, Stalinist architecture, and North Korean manpower.

This deceptively salty lake looks like blushing pink lemonade.

Despite a fraught and controversial history this African island holds a powerful monument to the tragedy of the slave trade.

This tiny, tranquil Senegalese island serves as a powerful symbol of the Atlantic slave trade.

The largest camel market in West Africa

Thousands of colorful pirogues showcase ingenious craftsmanship at the largest fishermen port in Nouakchott.

An architectural relic that survived the hands of time.

This fortified sand barrier dividing a contested territory is the longest minefield in the world.

This remarkably well-preserved mosque stands amid an 11th-century caravansary.

Five ancient libraries, little changed for centuries, preserve a medieval archive of Quranic lore and civic documents

A geological bull's-eye visible from outer space.

Climb atop one of the world's longest and heaviest trains for an unbelievable journey across the Sahara Desert.