U.K. mansion where ‘listeners’ spied on Nazi generals becomes museum

Trent Park, a historic country house located north of London, has been transformed into a museum. During World War II, the property served as a camp specifically for high-ranking German prisoners of war.

While Nazi generals enjoyed wine and lounged in elegant rooms upstairs, a team of covert listeners operated in the basement. These operatives monitored and followed the prisoners' chatter, successfully gleaning vital insights into Germany's war plans.