It had been soem time since Walker had gone to look at the underground areas of Genesis especially the connecting parts where the earth dragon territory was being built. But he was there now and he was pretty amazed.
The size was just one small part of everything. Well, if you could call it a small part. In actuality, it had been expanded substantially. The large amount of supports built were expertly crafted to hold up for generations with minimal maintenance. Making the ceiling much safer.
This wasn't all of it though, the buildings were made to be able to handle a great deal of weight or damage. Meaning that even a naturally occurring earthquake causing a collapse might not cause the buildings to fall. Meaning that those within would be safe from the rocks and could be rescued.