Originally intended for Weekly CG Challenge #114 "Ancient Technology", but then life got in the way and I couldn't finish it in time. There is still a lot of work that I wanted to do (the aqueduct was meant to have more wear and tear and the river banks should have been more detailed) but other projects are queuing up and I'll leave this as it is.
Textures from Poliigon.com (ground and rock textures), HDR from HDRI Haven.
Blog post: https://honestmisskate.blogspot.com/2017/12/roman-aqueduct.html