In 2005, the London Underground started playing orchestral soundtracks in 65 tube stations as part of a scheme to deter anti-social behavior. As a result, a 33 percent decline in robberies, a 25 percent decline in staff verbal assaults, and a 37 percent decrease in vandalism was observed.
A crowd funding campaign raised over £20,000 to replace all adverts in a London Underground station with pictures of cats.
The original ‘Mind the Gap’ recording used on the London Underground was restored at Embankment station last year because the actor’s widow was comforted to hear her husband’s voice again.
There is a mosquito species that evolved in the London Underground and can not be found above-ground.