A palatial former bank building now houses what may be the poshest art venue (and former Tesco) in Belfast.

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

Step into Narnia at this small park featuring statues from "The Lion, the Witch, and the Wardrobe."

A striking symbol of the Troubles, this semi-demolished prison was home to the largest prison escape in the history of the British Isles.

The decaying giant of Ulster’s lost linen empire.

400 million years of erosion shaped these fascinating seaside caves, which made an appearance on 'Game of Thrones.'

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

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

The lake that fills and empties itself at random.

The last Victorian market in Belfast.

For part of the year, this innovative greenhouse is painted white to keep the plants from getting scorched.

An abandoned shipping control tower looks like a satellite perched at the end of a pier.

This mine was once used to defend the coast from attack during World War II.

A restored World War II Churchill Mark VII Tank now stands guard in Carrickfergus.

A vibrant portrait celebrates the actress in her hometown.

This picturesque lighthouse at the edge of the Irish Sea looks like a giant stone pencil.

The last planned Soviet city was built for the former residents of Prypiat after the Chornobyl disaster.

This derelict superstructure was a very important warning system for the Soviet military.

This well-preserved Cistercian Abbey in a romantic pastoral setting has inspired artists like the poet Wordsworth.

The decaying ruins of Wales' first asylum for the mentally ill.

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

A brisk climb up this solitary peak leads to the origin story of a towering figure in Irish history.

The ruins of a once-grand mansion in Northern Ireland are now thought to be haunted.

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