8. London, England

 

London's mayor Boris Johnson about to prove why some music is
best kept underground. 
 

 

The London Tube was the world's first underground metro, opening in 1863 … and they've not done too much since. Only in the current, two-decade-long upgrade plan have air-conditioned carriages been introduced.

But for history, for great underground busking and for something relatively cheap in an expensive city, it's hard to beat.

How they'll cope with the Olympics this year remains to be seen, but at least they've enlarged a few key stations to handle the extra flow.