This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

The mouldering manses of wealthy colonials still pock the streets of a Curaçao neighborhood.

Shipwrecks, ruins, and turtles are all that remain on this haunting Caribbean ghost island.

Commercial airplanes land mere feet over the heads of sunbathing beachgoers on this tiny island.

The shortest in the world, this landing strip stretches a mere 1,312 feet before steep cliffs on either end plunge into the Caribbean.

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

A hugely vast Irish landscape of barren rock that stretches for miles.

This valley of hot springs and boiling mud pots is home to the record-holding "Geysir," which originated the English word.

The world's tallest box hedge is found in a delightful garden.

The ancient tomb acts as a calendar that keeps perfect time.

Northern Ireland's Brobdingnagian stepping stones.

A stunning Victorian abbey and walled garden on a lakefront.

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

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

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

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

This permanent collection of preserved bodies taken from Irish bogs is one of the leading authorities on such morbid mummies.

Experience what life was like in Ireland during the Viking and medieval ages.

The burial place of 14 of the executed leaders of the Easter Rising.

One of Ireland's most infamous prisons for rebels including men, women and children.

This irregularly shaped sea fortress has defended not one but three different sovereign states.

It is said that each of the white stones in the red facade of this medieval house represents the head of a murdered Swedish noble.

Stockholm's narrowest alley is barely over two feet wide.

Dine on food tied to Viking history and legend at this subterranean Stockholm spot.