Mentioned by Fountain of Travel
29 Free Things To Do in Manchester, United Kingdom
"Museum of Science and Industry, MOSI for short, is an excellent museum and you can easily spend a few hours exploring the interactive exhibitions. You can see airplanes, look at a steam train or witness the transformation of a cotton ball to yarn. My favourite section is the upper floor of the main hall, where you can try interactive exhibitions and attempt to solve brain teasers."