Tianyuan City was actually not very large.
After defeating Fang of the Jackal Wolf, the entire Tianyuan City was only the size of a small town. Even now, with extensive construction bustling outside the old city, Tianyuan at best could only be considered a small city.
But,
Tianyuan City stood in the vast wilderness, making no attempt to hide itself, unafraid of Monster Overlords in the slightest.
With this perspective, the Fire Lions saw Tianyuan City as incredibly grand and majestic.
Moreover...
Their Fire Lion stronghold was hidden within a Secret Realm, so the fact that humans displayed their city openly in the wilderness did not mean that was their only city.
It only represented that humans were not afraid of Monster Overlord attacks at all.
Inside Tianyuan City, the streets were bustling.
Compared to a month ago, the main road had many more shops, including rice and oil stores, teahouses, noodle shops, restaurants, pawnshops, and countless street vendors.
