The U.S. military dumped millions dollars worth of goods off a beach in Vanuatu, purely to spite the British and French.

A copy of the famous statue can be found in this Florence piazza, along with one of the most breathtaking views of the city below.

This private skyway is filled with art and was expanded explicitly so that Hitler could appreciate a river.

A historic observatory precariously perched at the "Top of Europe."

Monasteries on rock pillars, once accessible only by frayed ropes.

Vienna's diversity-themed traffic lights were inspired by the Eurovision Song Contest.

Pilgrimage site for star-crossed lovers.

This bridge was constructed from the rubble of the infamous Bastille.

Seat of the Duke and Duchess of Devonshire for centuries.

The modern birthplace of Irish freedom.

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

Ireland's most remarkable collection of these curious cone-shaped houses is worth the buzz.

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

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

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

The castle still holds traces of the abandoned Roman fort it was built atop.

Recently restored menagerie of Victorian-era beasts.

A harem-inspired Moorish fantasy design in a Victorian-era Welsh castle.

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

This life-size replica of the Statue of Liberty's flame is also a tribute to Princess Diana by default.

Famously misunderstood wonder of the ancient world

This picturesque horseshoe weir was first built in the 1600s to prevent flooding in the town of Bath.

The ruins of this medieval castle in Northern Ireland have inspired artists from C.S. Lewis to Led Zeppelin.

These barriers stand as stark reminders of Northern Ireland's troubled past.