The lake that fills and empties itself at random.

This giant sculpture is both loved and disliked by the local community.

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

The "Black Arch" guards the entrance to the picturesque Glens of Antrim.

This rustic, flower-lined pathway once had very little in common with its namesake.

A memorial to a goat culled during a foot and mouth disease outbreak guards a series of fantastical caves.

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

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

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

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

What was meant to be a temporary exhibit is now a permanent fixture at the St. Louis Zoo filled with beautiful birds.

Despite the name, this 16th-century structure in Galway wasn't built by the Spanish.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

Less a museum than a bizarre fantasy world created by artists and engineers.

Couple's personal collection of pinball machines turned public pinball museum.

A remnant of the last Ice Age, this lake is surrounded by fascinating rock formations.

Three playfully immersive mini golf courses let you travel alongside your ball to the cup at this facility, which has been around since the 1950s.

Prayers and messages of hope decorate the ceramic tiles of this pavilion.

A journey through a collection of classic cars and fashionable artwork.

A perfect turquoise lake colored with glacier dust.

Major tourist destination known for its bubbling mud-pools and hot thermal springs.

A New Zealand communications tower stands as the tallest structure in the Southern Hemisphere.

This sheep farm has been forever transformed since being built for “The Hobbit” film series.

Tubing through a cave lit with glowworms is a magical underground experience.