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

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

This blowhole is supposedly caused by a trapped monster.

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

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

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

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

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

At the most northwestern point of the contiguous United States lies a trail leading through an ancient forest to stunning cliff-side vistas and massive oceanside caves.

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

An authentic replica of an Asian temple and garden hidden amongst the natural beauty of Hawai'i.

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

Taste rums made with heirloom sugarcane on the distillery's own estate.

This spot along the 23.5 degree north parallel marks the northern boundary of the tropics.

A graceful natural rock formation stands astride the point where the Gulf of California meets the Pacific Ocean.

The metal spire on the roof of this tower was intended as an airship docking station, but it was never actually used.

Obelisks and stone pineapples in the Irish countryside.

Once believed to be a sacred Roman legionary symbol, this bronze figure inspired the 1954 novel 'The Eagle of the Ninth.'

When the town wouldn't allow the fast-food behemoth to build a new restaurant, they put one inside an 1850 home.

This pub can leave even the sober feeling slightly unsteady.

The world's oldest individual clonal tree looks like a wimp despite standing tall for 9,550 years.

Legacy of the earthquake that nearly wiped Lisbon off the face of the Earth.

This pub has roots dating back to 1430.

Sip cherry liqueur at a bar dating back to 1840.