A monument to a 19th-century Irish woman whose murder inspired several literary works.

The remains of a majestic house that was once stood in the crosshairs of the Irish Republican Army.

An important landmark in the history of algebraic logic.

These moss-covered medieval ruins tower atop the smallest of Ireland's Aran Islands.

This supermarket offers shoppers a window into the past alongside their groceries.

This small Irish village suffered the greatest loss of life when the Titanic sank.

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

Catholics make up 84% of Ireland's population but this Dublin museum remembers the small but important Jewish community.

This Bronze Age tomb is the centerpiece of a clearing within a beautiful Irish forest.

The chaotic studio of one of the 20th century's most important artists has been preserved down to the dust.

Certain traditions prevail on the least-visited island of the Aran Islands.

An important pilgrimage site for pagans and early Christians, named for a Celtic goddess-turned-saint.

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

The ruins of a medieval monastery named after a type of tree.

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."

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

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

A grave marker depicting a body snatching tableau on a 19th-century tombstone.

A Hungarian optometrist's charming collection of Asian art and curiosities.

The geographical center of Budapest is marked with a 10-foot-tall stylized zero.

Museum dedicated to the terror regimes of Hungary.

The Bristol Camera Obscura housed in an ancient windmill.

The painting on an aptly named street honors the 1980s slasher movie.

Martin Bricelj Baraga's monolithic sculpture measures the blueness of the sky, and changes color to match it.