somebody pretty smart found a stereoscope slide of a Moel T and made a gif of it so we can appreciate it in 3d

https://www.jalopyjournal.com/forum/threads/vintage-shots-from-days-gone-by-part-2.1154030/page-868#post-13838738

a lot of online library websites have collections of stereoscopes, if you want to make some gifs of them. PLEASE crop them first to eliminate the dead zones like this street in this one

https://digitalcollections.nypl.org/search/index?utf8=%E2%9C%93&keywords=Hudson+River+RR#/?scroll=23