If you've ever basked in the warm glow of a neon sign, you'd know the attraction to the light is something unique. We've highlighted San Francisco's vibrant neon signs and it's like taking a trip through time.
San Francisco neon lights: A luminous trip through time yahoo.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from yahoo.com Daily Mail and Mail on Sunday newspapers.