Hello Matt_Bright,
here you can find some tips how to create galleries in CoSpaces http://forum.edu.cospaces.io/t/attach-feature-for-images/112.
One of our user shared recently a link to video tutorial how to create virtual museum (in Italian)https://www.youtube.com/watch?v=beX0k1tak_c&feature=youtu.be. I hope it can be also helpfull for you.