The Large Hadron Collider

There is a 'teaser' campaign taking place on London underground, with posters being placed in prime sites even though it is not obvious what is being advertised... [Later I was told on facebook that it is The Times newspaper] images used so far include... this poster is at Holborn station

Barack Obama outside Number Ten Downing Street

A golden football

A young boy in swimming shorts

A woman in a sports vest doing some kind of stretch

The CERN Large Hadron Collider

David Cameron walking past Winston Churchill