London's 4-year-old human bus map

A 4-year-old boy has memorised virtually every bus service in the capital.

Ishaal Yewale can tell you which bus route to take, day or night.

His father Jayant says that Ishaal's always been fascinated with public transport and has been reading bus maps for the past eight months. 'He can read well, and is very good with numbers'.

click here to see him in action