These fantastically named natural pools look like something out of a Scottish myth.

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

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

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

This is the largest cemetery in Ireland and the first cemetery museum in the world.

A stunning Victorian abbey and walled garden on a lakefront.

Petrified footprints of one of the very first vertebrates to walk on land.

Wander among the abandoned ruins of this once-powerful medieval town.

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

The mummified heart of a saint lives on in this church—after a brief hiatus when it was stolen.

An ancient neolithic tomb that only sees the sun twice a year.

A sacred well steeped in Pagan roots on the West Coast of Ireland.

Dublin's "Dead Zoo" serves as a window to Victorian museum design.

The enchanting archway is the only surviving portal into Dublin's lost medieval wall.

The oldest pub in Ireland may also be the oldest surviving bar in the entire world.

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

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

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

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

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

These artifacts were discovered during the construction of the airport, with some dating back to the Neolithic period.

One of the only places where Earth’s mantle lies above water.

An 18th century fountain and two columns are all that remains of Rome's forgotten river harbor.

In a time before lifeguards, this house was a sanctuary for the shipwrecked.