Try your hand at old-fashioned coffee growing at this museum devoted to one of the world's most coveted beans.

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

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

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

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

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

What remains of the summer palace of King Kamehameha III.

Originally built to monitor fishing, this Victorian tower now educates visitors about the local salmon industry.

At this cozy bar tucked down a hidden Galway backroad, Guinness makes the Gaelic come out.

This 14th century tower house was once the home of Irish poet W.B. Yeats.

The ruins of a medieval monastery named after a type of tree.

Mortarless walls that stretch for miles are a lovely solution for creating grazing land in the harsh terrain of the Aran Islands.

A collection of housewares from recent Irish history adjoined by a tower from ancient Irish history.

These imposing walls and towers look more like the ruins of a fortress than a monastery.

The ruins of an 800-year-old monastery boasts the tallest round tower in Ireland.

This controversial Irish show cave is home to a massive formation known as the Great Stalactite.

This singular Irish dolmen is more Frank Lloyd Wright than upright stonehenge.

While only two of the ancient buildings at this site are actually churches this was one of the earliest Irish pilgrimage sites ever.

A moody and picturesque riverside ruin overgrown with vegetation.

A remarkably intact castle that once was the largest in Ireland.

An Iron Age fort on the edge of a seaside cliff offers a glimpse into an ancient, mystical world.

A preserved college lock-up that recalls a clubhouse approach to discipline.

Sitting in the basement of a castle, the largest wine barrel in the world is bigger than most apartments.

This historic funicular system combines the old with the new while offering delightful views over the surrounding valley.