I have cities but no houses,forests but no tress,rivers with

I have cities but no houses,forests but no tress,rivers with I have cities but no houses,forests but no trees,rivers with I have cities but no houses；forests but no trees;rivers but I have cities but no houses,forests but no trees ,rivers Wit 猜谜：I have cities but no houses ,forests but no trees,rivers I have cities but no houses;forests（森林）but no trees;rivers（河 I have cities but no houses ;forests（森林）but no trees; rivers It has cities but no houses;forests but no trees;rivers with It has cities but no houses,forests but no trees,rivers with I have cities but no houses,forests but no trees ,rives with l have cities but no houses,forests but no trees A riddle:I have cities but no houses,forests but no trees,ri