This allegedly haunted 16th-century tower house-turned-museum exhibits thousands of spectacular objects.

This historic pub has maintained much of its 1906 decor, including a small sequestered room for women, where orders were slipped through a tiny window.

A 18th century graveyard and its astonishing cortege of macabre iconography.

Nestled among the living residents is the final resting place of an apothecary plague victim.

Accessible only at low tide, the deserted island is dotted with World War II ruins.

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

This series of Scottish caves has no clear purpose other than baffling historians.

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

This century-old grotesque has a mysterious history and may not actually be a rabbit.

Since 2017, the remains of Stretford's industrial past have been occupied by a collection of gnomes.

A Victorian Gothic masterpiece housing a world-class collection of rare books and manuscripts.

19th century museum with an eclectic mix of curiosities, from Egyptian artifacts to items on archery history to the skull of the world's oldest horse.

This historic castle was already in ruins by the 13th century.

This ancient Irish religious site is covered in ancient carvings, many of which have barely aged.

A moody and picturesque riverside ruin overgrown with vegetation.

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

Local legend says the remains of Father Christmas lie within the medieval grounds.

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

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

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

A museum that cashes in on its infamous little people while teaching you a thing or two about the Irish fey.

A tiny microvalley etched into the side of Knocknarea Mountain hides another world.

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.