This was a palace that was completely different from the palaces that were in the capital of the different empires.
That was because this was a different style of palace.
Now that I was looking more closely at it, I realized that this entire city was in a completely different style than the cities of this cultivation world.
The cities of the cultivation world were built in an Eastern style since this was a cultivation world.
But the city and this palace that was hidden under the Tarask Desert was built in a Western style. It was reminiscent of a medieval town with the way that everything was built.
Though the buildings of this underground city were made of quite sturdy materials instead of just wood.
Otherwise, they wouldn't have lasted for as long as they did.