Palais de la Découverte, Paris

All you want to know about science.
Most interesting activities : planetarium (I think, the first in the world, but fortunately the machine has been renewed), experiments by scientists, if you understand French. In this matter, I recommend : the genetic (they have a machine which shows the mix of genes), the electrostatic (your hair stands on by a high intensity electricity), the rats school (is the rat able to go over the labyrinth ?), the liquid air (be aware to not catch a cold).
For further information, see www.palais-decouverte.fr
- Entrance : 5.60 Euros with the planetarium,
- 18/+60 : 3.70 E, family (4 persons including children +5) : 12.20 E (+A child = +2.30 E).
Every day excepted Monday : 9.30AM - 6PM (Sunday : 10AM-7PM)

This old museum was fast asleep for decades. But it has undergone a slight face-lift and is one of the more interesting and at the same time restful museums in Paris. It has most of the old very elaborate physical demonstrations left (the "Push the Button" type - that actually work) and it has new and very interesting interactive experiments. Some of them involving living creatures - you, your friend or an animal that isn't hurt in any way. Just reacting the way it always did (du calm s'il vous plait - it is mostly beatles and little fishes).

There is also a "professor" that demonstrates the more violent behaviours of nature - the electric show is - well - "electric".

And there is the Rat School. A fascinating lesson for men and rats. Bring your children there - they will love it. And you too!