LONDON, UK - JULY 13, 2019: Mind The Gap Warning AtLondon Underground Station. London Underground Is The 11th Busiest Metro System Worldwide With 1.1 Billion Annual Rides. Stock Photo, Picture And Royalty Free Image. Image 131173181.
New Tube trains blamed for dramatic rise in people falling down the gap on London Underground | The Independent | The Independent
Mind the Gap - Researchers go to London — Urban Sharing
Logo: London Underground: Mind the gap - Sterilization of medical supplies