A beloved upside-down beacon off the coast of Northern Ireland.

This tiny train shuttles passengers to one of Northern Ireland's most spectacular sights.

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

The lake that fills and empties itself at random.

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

This hidden museum examines the complex history of the country's law enforcement.

The statue honors a beloved bird that once roamed St. George's Market.

The stone that rocks no more.

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

This mysterious Bronze Age standing stone has become a place where couples profess their love.

This castle once belonged to one of the most prominent families of medieval Carrickfergus.

This stone pays homage to the diaries written by Gideon Bonnivert.

Legend has it that seven Anglo-Saxon kings were coronated on this stone, located in the appropriately-named town of Kingston.

A very classy 1920s-era bar right in Grand Central Station.

A dilapidated dock tells the story of Titanic's missed arrival.

An exotic wildlife habitat right off The Strip.

Thousands of artifacts relating to human sexuality, including the world's largest sex bike.