This whimsical winery by Antoni Gaudí looks ripped from the pages of a fairytale.

Hundreds of boat-shaped headstones fill this graveyard as part of a centuries-old custom with mysterious origins.

The ruins of an 800-year-old monastery boasts the tallest round tower in Ireland.

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

The oldest inn in Kilkenny was established by the first convicted witch in Ireland.

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

A 13th century fortified house built to defend the Duchy of Burgundy.

This traditional festival celebrates a family of wooden giants that have survived Nazis, wars, and religion.

A remote hilltop covered in giant monoliths haunts the Brittany countryside.

Medieval Danse Macabre Fresco in Northern Brittany.

Legend has it this 11th-century castle was paid a visit from the devil.

The 16th-century church was kept in its ruined state as a reminder of the casualties of World War I.

This replica of an 8th century burial ship actually sailed to Norway before returning home to Minnesota.

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

A rare wooden coffin set vertically into the Gothic arch of an ruined church.

A medieval relic whose great hall once hosted Mayflower pilgrims, one of Henry VIII’s ill-fated wives, and plenty of royal intrigue.

The Isle of Wight’s “Island Line” serviced by former London Underground trains from the 1930s.

Some wattle-and-daub, a Moorish mural, a glacial erratic, and a Giant named Gilbert.

A spooky juxtaposition of caves and graves gives this legend-filled cemetery a particularly haunting vibe.

This crumbling headstone commemorates the first death by tiger in Britain's history.

The gravestone of a delicate singer-songwriter bears a fittingly introspective epitaph.

This historic franken-chapel is the oldest wooden church in the world, at least part of it.

The near loss of the stately fireplaces at this medieval castle spawned some of Britain's most crucial historic preservation laws.

A spiral staircase connects the limestone cave with Pembroke Castle, birthplace of King Henry VII.