This World War II relic let Allied pilots know they were entering neutral airspace.

This colorful and fiery mural depicts the Irish folk story of the beloved hero Cuchulain.

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

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

This windmill was used for well over a century.

The first organic farm shop in Northern Ireland.

This castle once belonged to one of the most prominent families of medieval Carrickfergus.

This Victorian-era walkway is just one of the many 19th-century treasures in Whitehead.

The stone that rocks no more.

The artwork is a community's ode to the "father of Irish tourism."

This Bronze Age tomb makes the most unusual front garden fixture.

The enigmatic stone has towered over a Northern Ireland town for thousands of years.

Robotic car thieves, freakish animals and huge neon floats in Northern Ireland's capital.

Belfast's namesake river still winds below the city center, hidden from sight.

This Neolithic passage tomb forms part of a World Heritage Site.

The modern birthplace of Irish freedom.

A hugely vast Irish landscape of barren rock that stretches for miles.

This burial pyramid in central Ireland is thousands of miles and thousands of years away from its Egyptian inspiration.

A stunning Victorian abbey and walled garden on a lakefront.

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

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

An 80-year-old plane tree is devouring an iron bench at Ireland's oldest law school.

One of Ireland's most infamous prisons for rebels including men, women and children.

The ancient tomb acts as a calendar that keeps perfect time.