Images as posts with random images

Im looking for a theme simular to that of what https://themetapicture.com looks like.

Each post shows more random images, its something I would like to use in a new project. – as shown here https://themetapicture.com/egyptians-were-wise/

Does anyone know how I can achieve this?

I use the graphene theme, always and I love the coder for that he is a diamond!

Regards

Matt