From: London, England
Hehe... I could point out (humorously, I hasten to add) that we were the first city in the world to have a fully operational underground train network, or that thirty six pounds are worth nearly seventy American dollars... but I probably shouldn't.
But man, do we have one tough act to follow...
(p.s. I actually laughed out loud at "Czech, please!" Gotta love puns.)