The permanent exhibition at this museum in Kohtla-Järve shows how oil shale forms, how it is discovered and the history of its use. It also explains how it is produced and recycled. You can also see an exhibition of 80 works titled ‘The oil shale industry in art’. Did you know…? *Oil shale, Estonia’s most important natural resource, formed 450 million years ago and is found in 80 countries – but there is only one oil shale museum in the world *The museum holds more than 22,000 individual items which it places at the disposal of researchers