Germany’s Federal Intelligence Service (BND) has officially opened the world’s biggest intelligence headquarters worth more than €1bn (£870m).
The construction began 12 years ago.
The building is close to the route of the former Berlin Wall.
The building was made using 135,000 cubic metres of concrete and 20,000 tons of steel, and has 14,000 windows and 12,000 doors.
It is one of Germany’s most secretive spaces with strict security rules.
Employees cannot keep mobile phones, private laptops, and cannot check their personal emails and no social media accounts allowed at the building.
Approximately 3,200 of an expected 4,000 employees have already arrived and are working at the new building.
The agency employs about 6,500 people in Germany and around the world.
At the end of the day, all access cards must be locked in a safe.
German chancellor Angela Merkel visiting the headquarters said, in an often very confusing world Germany needs a strong and efficient foreign intelligence service.
The site previously housed police barracks, destroyed during the second world war.
