They began by looking again at the murder of Cardiff prostitue Lynette White on St Valentine's Day in 1988.

BBC: Sex shop murder case reopened

Red is the colour of love and that will be the colour of the lights radiating from the historic building on St Valentine's Day, while rainbow colours will mark Belfast Pride in July.

BBC: Rays of light over Belfast City Hall

On February 14th, St Valentine's day, one of its craft went into orbit around an asteroid called Eros amid much over-rehearsed, toe-curling humour.

ECONOMIST: An erotic encounter