The facade of this 16th-century building is decorated with carvings of 300 seashells.

This enormous censer uses a pulley system installed over 400 years ago.

Remarkably intact Roman stone fortifications have encircled this Spanish city for centuries.

This religious complex carved into a cliff is steeped in legends of miraculous stags and the Holy Grail.

This home designed for chocolate magnate Antoni Amatller is an exquisite treasure-box of Catalan Modernism.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

This 17th-century manor house provides a fascinating glimpse into old-world Mallorcan life.

This historical manor is complete with a magnificent garden.

This historic electric train has operated with regularity since the early 1900s.

A contemporary art installation housed within a Gothic cathedral.

The oldest inn in England served brew to the crusaders.

A mysterious shape catches the eye in this 16th-century painting.

This one has sailed five times as far as Sir Francis Drake's famous ship.

The ship built to ferry passengers and goods to the doomed Titanic is now the last remaining White Star Line vessel.

A museum marks and documents the site of the Titanic's launch.

Northern Ireland's Brobdingnagian stepping stones.

Traveling this mountain pass reveals quaint stone buildings, stunning Irish scenery, and a bridge said to grant wishes.

The block of aged dairy is probably still edible after 2,300 years in a peat bog.

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

These gigantic skeletons tower over visitors and provide insight into the creatures that once ruled over Ireland.

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

The comedy and tragedy of Oscar Wilde is preserved in a Dublin park, captured in a sculpture of colorful stone.

A guitar mounted on a wall in Temple Bar honors the Irish musician.