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England

I don't know if it's your thing, but if you fancy traveling an hour, there's the museum at Bletchley Park:

http://www.bletchleypark.org.uk/

This was where the WW2 code-breakers cracked the German Enigma cypher machine, and it now houses many beautiful examples of machines from computing's history.

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England

This part of the museum may interest chiptuners more:

http://www.tnmoc.org/hands-on.aspx

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Finland

Back in Finland! We realised that there wasnt much time so we pretty much just wondered around city with Underground. Got to see the obvious things like Big Ben, Hyde Park, Notting Hill, couple of other parks etc., then went shopping and couple of pubs..We didnt find anything on Brick Lane, but it looked like an awesome place.

Had fun times, I gotta get there for 2 weeks or something to get more out of the whole city. So hectic place, first it was a shock but after a while I really liked it.

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Hoxton, London UK

Sounds like fun dude. Indeed, brick lane is more of a culture-soak type place, dead on weekdays mind