The lump of food fat mixed with wet wipes and built up in drains beneath Kingston.
The 'fatberg' weighed 15 tonnes and was found after residents complained that they couldn't flush their toilets.
Here are the top 10 Google news searches for 2013:
2) Cory Monteith
3) Typhoon Haiyan
5) Boston Marathon
6) False Widow Spider
7) Cheryl Cole Tattoo
8) Margaret Thatcher
9) Oscar Pistorius
10) Nelson Mandela
The False Widow Spider was the sixth most searched for new story.