City in Sketchup

I have finished the city in sketchup. Sketchup is great for getting down ideas down fairly easily and enables you to see them in 3D. The hardest thing I found in Sketchup was creating curved shapes like the domes that are on some of the houses and windows but once you have created one you can easily copy and paste to quickly populate the environment with parts you need. I also did this once I made one building to quickly fill the city. In my unreal map all the buildings wont be the same and I also want to add some extra buildings like a market and a blacksmiths.