Famous Big Ben is being silenced for the maintenance anagrams
Rearranging the letters of 'Famous Big Ben is being silenced for the maintenance' gives:
O, Britain's time-machine enfeebled; confuses banging!
(by Aronas Pinchas) (2007) (pending approval)
Other related anagrams without their own page:
"Big Ben is being repaired. Its clock has stopped." -> "Oi! it keeps darned big BBC helicopters passing!" (by Mick Tully using Anagram Genius) (2007) (pending approval)
"The London's famous Big Ben" -> "Hub' of England - 'Boss on Time." (by Aronas Pinchas ) (2011) (pending approval)