'It was top, top secret': No-one knew about this nuclear bunker for years - now you can go inside

It might not be so hidden anymore, but for decades this vast underground bunker was one of the UK's best kept secret defence sites. Not even local residents had any clue what the concrete entrance hub was hiding deep in the Cheshire countryside for decades at Hack Green.

It was cloaked in secrecy until it was officially decommissioned in 1993. Now the secret nuclear bunker is a unique tourist attraction - to serve as a lasting reminder of the threat of the Cold War, the name given to the geopolitical tensions between the Soviet Union and America and its Allies in the 1970s and 80s.

Visitors can now walk the eerie corridors where civil servants prepared for the threat of nuclear attack. During its active years it would have become the Regional Government Headquarters in the event of a national emergency.

READ MORE: People are queuing late at night for Trafford Centre's newest addition

While it is now a family attraction, there are some rooms deemed too scary for children to enter. There is a special Small Spies trail to help younger visitors to understand the exhibits.

The attraction has recreated key spaces in the bunker, including a radar room, a decontamination room, huge underground water tank and dormitory where around 150 civil servants would have been able to live in the event of a nuclear attack. The museum also houses the largest public display of decommissioned nuclear weapons in the country.

The museum takes visitors through the history of the site, as well as interactive exhibits - including a terrifying nuclear shelter experience where you can feel what it would have been like for a bomb to go off in the north west and the messages you would have received while sheltering.

You are given a warning before it