Dear student!
You haven't mentioned the courses which you are interested in. There are many unique courses in science and infact each and every subject under science is unique. In order to get detailed information on your subject of interest, you need to restructure your question and ask agin. Some of the unique courses are -
Tea tasting, public health entomology, ethical hacking, photonics, flavour chemist etc., The list will not end if you go on searching. Hope this helps.
Good luck!