An ossuary built in 1210 to collect bones from the Ospedale Maggiore of Milan.

This 18th-century fort surrounded by a moat was used to store gun powder and ammunition, and now sits in the middle of a large part in Dublin.

It's said this geological anomaly was caused when the Devil took a bite out of the Irish mountainside.

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

This statue celebrating everyday life in Dublin has a few unsavory nicknames.

A former fortified tower now houses a collection of classic communications equipment.

This modest plaza in Moneygall, Ireland has cashed in on its distant connection to the U.S. president.

Dublin's most modern, visually spectacular bridge is modeled after Ireland's national emblem.

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

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

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

Mortarless walls that stretch for miles are a lovely solution for creating grazing land in the harsh terrain of the Aran Islands.

The modern birthplace of Irish freedom.

Behemoth, cannon-like telescope operated by generations of Irish earls.

A steam trawler with a whiskey-soaked history driven ashore in 1960 resides rusty but still standing on the shoreline.

The house where the writer spent his formative years.

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

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

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

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

Experience what life was like in Ireland during the Viking and medieval ages.

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

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