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Finland has at least two good claims to techno-historical fame, but the University of Helskini's computing department wins out over Nokia. There are other mobile phone makers, but there's never been anything quite like Linux. Started in 1991 by recently-liberated QL owner Linus Torvalds on his brand new 80386 PC, the GPL's operating system has changed the world in the 16 years since and acquired a huge army of fans and contributors. However, it retains something of the flavour of the land that gave it birth — a flinty determination to see things through coupled with a unique sense of community.
Real-life visiting potential: 5/10. We're sure they'll be delighted to see you, but there'll be absolutely nothing to do.