In this 400-year-old hotel in Madrid, you'll find a comb in every room, an old clock, and maybe a ghost.

The oldest public library in Ireland.

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

Some of the saint's blood and bones are said to reside in Dublin.

A statue in the center of Dublin dedicated to one of their favorite sons of rock & roll.

An enigmatic monument to the Irish revolutionary who plotted an uprising against British rule.

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

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

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.

This courtly monument celebrates an influential comedian who turned taking the piss out of the powers-that-be into an art.

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

The house where the writer spent his formative years.

The 19th-century pharmacy (now a used bookstore) was featured in James Joyce’s "Ulysses," and has changed very little to this day.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

This neon landmark has been posing this deadpan question to follicly-challenged Dubliners for over 50 years.

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

A tribute to the incredible generosity the Choctaw Nation showed the Irish people during the Great Famine.

The whiskey producer's archives includes a historical list of infractions committed by and associated penalties exacted upon employees.

This Irish museum in a historic 19th century market pays tribute to the glory of butter.

An important landmark in the history of algebraic logic.

Ireland's most remarkable collection of these curious cone-shaped houses is worth the buzz.

Just a few miles off the western coast of Ireland lies an isle steeped in Irish literary history.

This single room has survived the centuries with almost no deterioration.