Massive London 'fatberg' to be turned into museum exhibit

Story highlights

  • 800-foot long 'fatberg' found under London
  • Most was turned into biodiesel
  • Fragments will become museum exhibit

(CNN)What used to be a disgusting subterranean mass of congealed waste -- also known as a fatberg -- will soon be on display at a London museum.

The peculiar exhibit is but a fragment of one of the largest such objects ever found, measuring 820 feet long and weighing 130 tons, as much as 11