A button spy camera at the Stasi Museum in Berlin, Germany.
The museum is based in the former headquarters of the Ministry for State Security (MfS), commonly known as the Stasi.
Much of the building has been preserved exactly as it was during the Stasi’s dark reign.
The Stasi spied on the residents of East Berlin, mostly using a vast network of citizens who’d become informants.
This hidden camera was used to gather evidence, and is chilling testament to how far people would go to rat on their neighbours.
The Stasi was dissolved in January 1990, after which many of its former officials were prosecuted.
The museum holds the surveillance records of millions of East Germans, which were laid open in the 1990s so that any citizen could inspect their personal file.
