When in Prague be careful to double check the name of the station your train is leaving from, as Hlavní nádraží and Holešovice Nádraží can easily be confused if you don't. This can result in you missing the train to Berlin and being over 8 hours late to meet the people who have flown out from england for 2 days just to meet you there, which can lead to lots of arguments.
The segway are electronic stand up scooters that travel at max speed of 6k/hr. Very fun. A great way to see the citadelle and the boulevards of Lille.
They also do tours from April to October.
Website in French but it gives you an idea.
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