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

The Grand Lodge of Ireland is one of the oldest in the world, full of fantastical, elaborately themed rooms.

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

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

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

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."

After being destroyed by IRA sympathizers, the ruins of this stately Irish manor have sat vacant for decades.

More than 5,000 artifacts donated by the people of the city, plus a room entirely devoted to the band U2.

An 1814 castle that hosts an exhibit of "explorabilia".

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

The world's toughest modern Christian pilgrimage leads directly to the gates of Hell.

A moody and picturesque riverside ruin overgrown with vegetation.

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

A nun spent 16 years painting the stunning Celtic mural that covers the interior of this WWI memorial.

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

A corkscrew-shaped barn in Ireland.

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.

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

The oldest inn in Kilkenny was established by the first convicted witch in Ireland.

An unusual manor of stunning beauty, born out of a crippling disease.

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

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

Local legend says the remains of Father Christmas lie within the medieval grounds.