Question

البته این بنا به شکوه بنای تاریخی شهر شما نیست

Answer 1

This monument is not as magnificent as the one in your town.

Answer 2

I should admit that this building could not have as much grandeur as the ancient monument in your city.

Answer 3

But of course, this mansion/castle/palace is not as glorious/spectacular/grandiose as the one in your city.