Why do cats rub their faces against thing? E.g. Against the corner of a table :)

Question: Why do cats rub their faces against thing? E.g. Against the corner of a table :)
- Keywords:
  cat,
  face,
  rub
Asked by ejebhuddart to Kevin on 20 Jun 2012.
- Kevin Mahon answered on 20 Jun 2012:
  
  They have scent glands in their faces and rub against object to release these scents and mark territory and items as ‘theirs’!

Question: Why do cats rub their faces against thing? E.g. Against the corner of a table :)