If you're in the market for a massive Cold War-era underground nuclear bunker, look no further

If you're in the market for a new 46,000-square-foot, 236 bed place, then this underground nuclear bunker in Ballymena, Northern Ireland meets your needs.

This $850,000 bunker, began in 1987, completed in 1990, and kept a state secret until 2007, was designed to save Northern Ireland's government and legal officials from a possible nuclear attack during the cold war.

On Thursday, the government of Northern Ireland invited journalists to tour the facilities. In the pictures below, have a look at the former state secret that Cold-War era leaders thought could save them from a nuclear holocaust.