Last year I went to the National Technical Museum in Prague (Narodni Technicke Museum). It was amazingly big and full of history. The building on Letná had 14 exhibitions opened to the public – Architecture, construction and design, Astronomy, Transportation, Photographic studio, Mining, Metallurgy, Chemistry Around Us, InterCamera, Measurement of Time, Printing, Technology in the Hom, Technology in Toys and TV Studio. Amazing!
I will start today with The Old Ads:
Recycling the World 