when was Wunderland opened to the public?
How much did it cost to create?
How long did it take to create till opening?
How many visitors have you had since opening?

You can read about the important wunderland facts at following page: http://www.miniatur-wunderland.com/exhi ... and-facts/
You should find every informations except the total visitors at this page.
Since opening in 2001 nearly 6.000.000 people visited Miniatur Wunderland.

Hi eiran and welcome to the forum!
Here are some replies to your questions:
1 - When : 16. August, 2001
2 - How much : More than 12 million EURO => 16.3 million US-$
3 - How long : From November 2000 until August, 2001
4 - How many : Last census in October 2008 numbered to more than 5,500,000 with rising trend

Take care,
Erhard

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US-Modules in N eMail: erhard(at)minirails(dot)de