Word on the internet is that there is a café in the town of Zeist with a revolving door that generates power. That's right - every time someone walks through the revolving door, they generate enough power to make a cup of coffee!

I've not yet been able to find an image of this café but it is called Nature café La Porte. A few references to the café on the internet say that there is even a gauge where customers can see how much power they are generating.

A 45 minute train ride from Amsterdam Centraal, I'm thinking to make time to head over to Zeist and take pictures and generate some power of my own for a hot chocolate and maybe walk in a few times so I can have some toast.