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

Documenting the nationalist movement in Northern Ireland, with an emphasis on the history of political prisoners.

Celebrated in poem, this tiny hidden cemetery has a big and grisly history.

Originally commissioned as a sculpture to reflect the history of Belfast's red-light district, the final sculpture has been banned from Belfast public land.

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

A series of stained glass artworks that depict images of the hit TV show.

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

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

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

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

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

This old cement mine has been used as everything from a mushroom farm to a recording studio.

It was once nicknamed "the most bombed hotel in Europe."

A small plaque highlights the damage caused by German air raids during World War II.

This village provides a glimpse at rural life in Northern Ireland during the mid-20th-century.

St. Mary's features one of the most spectacularly decorated cathedral interiors in all of Europe.

This is the largest cemetery in Ireland and the first cemetery museum in the world.

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

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

An ancient neolithic tomb that only sees the sun twice a year.

A meandering boardwalk across the bogland leads to a "stairway to heaven" with sublime views.

The atmospheric road was never meant to be so creepy.

Commemorating the landing of William of Orange with his European army on their way to the Battle of the Boyne.

Architectural monsters are devouring this palace's every door and window.