The BBC World Service celebrated its 80th anniversary earlier this year. For over 70 years, it has been broadcasting programmes from the historic Bush House in London. Soon, this will no longer be the case. From mid-July, the World Service will be based at new BBC premises in London. For many employees, Bush House is a unique building, full of history and charm. It’s also a building that never sleeps. Work goes on here 24 hours a day. So … what exactly is it like inside Bush House in the middle of the night?