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

This controversial Irish show cave is home to a massive formation known as the Great Stalactite.

Once the longest bridge in Ireland, this rusting span sits abandoned and overrun by nature.

While only two of the ancient buildings at this site are actually churches this was one of the earliest Irish pilgrimage sites ever.

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

Just another ancient, mysterious Irish stone circle.

Petrified footprints of one of the very first vertebrates to walk on land.

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

A proud bronze billy stands as an eternal symbol of Ireland's oldest festival, where a goat is made king.

Oliver Cromwell once seized the land under this house, which included the ruins of a medieval abbey that the owner used to build his stately home.

Achill's most recently abandoned village dates back to to the Age of Enlightenment.

The oldest licensed distillery in Ireland.

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

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

An outstanding and haunting glimpse of the horrors of the Great Famine of Ireland.

The modern birthplace of Irish freedom.

A devastating booze inferno poured through the streets, claiming several victims who drank it.

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

An Irish town has built a statue to a silent film actor simply thanks to the holidays he once spent there.

This beautiful site is where the first transatlantic telegraph was sent from.

A strange egg in a mucky bog of western Ireland marks the spot of an aviation milestone.

A retired military stronghold on the rolling green coast of Donegal.

Though they've since been renamed, these two streets hint at Dublin's darker days.

An ancient holy well said to be used by the patron saint of sailors and travelers, lost in the boggy west of Valentia Island.