The perfectly preserved underground rooms where Churchill plotted the war against Germany.

Once designed as the entrance to Buckingham Palace, this structure was later relocated and stands as a victory arch.

The commemorative stone column conceals a secret laboratory.

One part local history, 99 parts gruesome haunted house.

These sculptures honor the knights who once called Carrickfergus Castle their stronghold.

A local remembrance for lives lost—a poppy for each—in war more than 100 years ago.

A replica memorializes the site where women were punished after the last witchcraft trial in Ireland.

A mural commemorating a man who was instrumental in the development and expansion of Belfast.

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.

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

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

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

An unassuming tribute to engineer William Bald and the workers who built one of Europe's most scenic coastal roads.

Every year locals give the bear a fresh coat of paint to preserve its signature goofy grin.

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

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.

Hauled from the water's depths, Henry VIII's flagship is preserved in this capsule-shaped museum.

All unmarked mute swans on the Thames are owned by the Queen per a tradition that began in the 12th century.

A wildlife paradise, this island is one of the world’s most important habitats for burrow nesting seabirds.

In 1977, an eccentric book lover formed a micronation for book lovers.

A rocky sea serpent hides caves, blowholes, and a spectacular natural bridge.

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