A trail of "Game of Thrones"-themed doors carved from fallen trees from the iconic Dark Hedges.

This stone harbor was key to Carnlough's limestone industry.

A harbor town pays tribute to a heroic wartime carrier pigeon.

A museum dedicated to the tragedy of Bloody Sunday.

This massive monument has been telling the time for 150 years—at a slight angle.

A giant sculpture of the legendary "Salmon of Knowledge" celebrates the return of fish to Belfast's River Lagan.

A medieval abbey featured on 'Game of Thrones' that dates back to the 12th-century.

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

The ship built to ferry passengers and goods to the doomed Titanic is now the last remaining White Star Line vessel.

An Irish cemetery filled with victims of political strife and violent conflict, including the grave of Bobby Sands.

The only monument to name all of the passengers and crew who died on the RMS Titanic.

A boulder in the Churchyard of Down Cathedral marks the legendary burial place of "The Apostle of Ireland."

The last Victorian market in Belfast.

It is said a heartbroken man visited the gap every day to stare blankly out at the sea.

A museum marks and documents the site of the Titanic's launch.

The ruins of this medieval castle in Northern Ireland have inspired artists from C.S. Lewis to Led Zeppelin.

This Victorian-era public house has set the standard for pub-style elegance for over a hundred years.

The atmospheric road was never meant to be so creepy.

This short bridge is the only thing connecting a tiny Irish island to the mainland.

Northern Ireland's Brobdingnagian stepping stones.

The severed head of a 17th-century Irish martyr lies within an intricate golden shrine.

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

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

The ruins of a monastery that dates to the 7th century.