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Trying to Show Link to Child Collections on a Parent Collection list

Excuse if this is simple. I’m new to webflow. I’m trying to create a photo archive site. I want to Display all Photos by Decade (Category collection). Within that list, I want to link to the collection landing page for a year which is a collection of photos catorized by that year. EG. On the by decades page, I click 1910s and it takes me to all the 1910s photos. Any help would be appreciated. How do I automatically link to that lower collection page?

I want it to work like webflow univerisity structure. Tutorials -> Topics -> Getting Started -> Web Concepts.