The glowing billboards of Piccadilly Circus are one of the most photographed sights in London, and nearby Trafalgar Square is a favorite meeting spot, with the National Gallery right next door.
A crime-scene cleaning company had set up a bloodied cardboard box, next to a booth where attendees could get photos of themselves against a perp-lineup backdrop.
The heart-shaped flower beds and the sculptures symbolizing love on the square attract many couples to come and take photos, becoming a witness of love.