Banksy artwork appears on the city maps but is soon taken down . A youth centre where it puts the piece down to ` ` and vandalism '' The cover art shows a couple embracing while checking their mobile phones . A mural showing secret agents , believed to be a spy , also discovered this weekend .
Banksy artwork appears on UK city street but is soon taken down . A youth center says it took the piece down to `` prevent vandalism '' The street art shows a couple embracing while checking their mobile phones . A mural showing secret agents , believed to be a Banksy , also discovered this weekend .