The remains of a 13th-century Franciscan friary have survived multiple attempts at destruction, most recently in 1921.

Certain traditions prevail on the least-visited island of the Aran Islands.

Wallabies live naturally on this Irish island.

A stunning Victorian abbey and walled garden on a lakefront.

A spectacular hidden beach in Ireland has the dark, disturbing nickname of "Murder Hole Beach."

This Irish show cave is said to have been the site of a Viking massacre that claimed 1,000 lives.

Perfectly preserved ancient monastery in an impossibly dramatic location on a rocky island in the Atlantic.

Lavish royal estate punctuated with heated greenhouses.

Theme park featuring miniature replicas of European monuments.

Rare wooden escalators lead deep down into an otherwise staggeringly monotonous tiled tunnel.

In an area where the remnants of WWI are discovered on a regular basis this preserved frontline trench may be the most amazing.

Described by William Wordsworth as a "World of Wonder."

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

The tradition of open-air secondhand and antiquarian bookselling in Paris dates back to the Renaissance.

The 3,600-year-old archeological sensation is considered to be the oldest representation of the cosmos.

Where a railroad loops under or over itself to rise or drop more than 70 feet in a short distance.

Legends of treasure and spirits flow from this this fairy tale-like oasis.

This astonishingly geometric cave has inspired everyone from Jules Verne to Pink Floyd.

This Copper beech tree nestled on a nature reserve is host to a bevy of autographs from Irish literary icons.

An Irish church where an 800-year-old mummy is reaching out of his coffin as if to shake hands.

Tiny effigies of the victims of Edinburgh's famous Anatomy Murders.

The fountain marks the area where hundreds of accused witches were burned at the stake.

One of the oldest scientific gardens in Britain, containing more than 13,302 plant species in its core collection.

Flowers have mysteriously appeared on her effigy every day for the last 150 years.