The value of those paintings was immense. After all, each of them exuded part of the individualities of existences that had reached the divine ranks!
They were almost on par with the traces left by divine beings in the new continent in terms of benefits that they could provide. Just by cultivating near one of them, a cultivator could feel encouraged to train harder and reach for higher realms.
It was a pity that they couldn't take any of them. Still, Noah and the others could always come back and cultivate there for some time after they finished exploring the castle. It was also their intention to take a look at the lands outside of that structure. They just had to decide how to proceed in that task later on.