The visitor map in Piwik isn't very accurate and I'm fine with that, but you guys are quite far off with The Netherlands. It's true we do claim land from water sometimes, but in Piwik it's quite extreme. The 'IJsselmeer', a big lake in the middle of the country, has been turned into land in the Piwik Map.

Not a big priority I would say, but would be good to look at.

Piwik:

Actual Netherlands: