Espace des Inventions is an awesome place to escape a rainy day. Here you can learn about all things science and have plenty of fun at the same time.
You'll soon see why this Montoie-Bourdonnette display of scientific achievements is visited by many travelers. If you're looking for other things to keep you busy, Olympic Museum, Lausanne Cathedral, and Ouchy Port are in the area too. They won't take very long to reach from Espace des Inventions.