Publisher's blurb: Find a magnificent building of Art Deco style, housing the World's Fair: Our investigators will certainly be delighted to go to this place of splendor and knowledge. Seeing all these technological gizmos; dreaming in front of some kind of houses that could one day take us into space; seeing cars capable of going at least twice as fast as a galloping horse; and how not to be delighted in front of this latest invention, a cabinet that keeps all your food cold or household appliances that do everything for you!