I will be running a campaign in my own setting. the idea is that the majority of play will take place in a large city and the region around it. The city I had in mind was built as a big circle with four main roads. Instead of making it myself I serached and found the eternal city of Axis and I figured I could potentially convert that. the problem is. all I can find is a low resolution image. what book.resources would I need to buy to get a detailed Map of it?
Do you perhaps know of any other city that fits that theme. another good example is Divinity's reach from Guild wars 2. especially with the palace at the center.