Louise Bourgeois' 30-foot-tall steel spider sculpture.

A castle built for love, and abandoned due to heartbreak.

Three gardens with toilets and urinals filled with bright flowers started as a protest against zoning rules.

Rochester's signature culinary delicacy.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

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

The ruins of this medieval castle in Northern Ireland have inspired artists from C.S. Lewis to Led Zeppelin.

This Victorian-era public house has set the standard for pub-style elegance for over a hundred years.

The atmospheric road was never meant to be so creepy.

Northern Ireland's Brobdingnagian stepping stones.

The modern birthplace of Irish freedom.

The somber sculptures commemorating Irish Famine on the river Liffey in Dublin.

A hugely vast Irish landscape of barren rock that stretches for miles.

Amidst the bustling streets of Dublin, there is a hushed garden that is dedicated to "All those who gave their lives in the cause of Irish Freedom."

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

This ancient Irish tower could easily have stood in for Rapunzel's prison.

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

This singular Irish dolmen is more Frank Lloyd Wright than upright stonehenge.

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

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

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

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

One of the most popular megalithic sites in Ireland stands as a humbler version of Stonehenge.

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