The red double-decker bus of London known as the 'Routemaster' may perhaps always be historically regarded as symbolic of London in the latter half of the 20th Century. The last Routemaster was decommissioned on 9th December, 2005.
The Routemasters considered by most to be aesthetically pleasing mode of transport. What's more, the bus's clever design >>>more on BBC h2g2.
http://www.bbc.co.uk/dna/h2g2/brunel/A7828699
