When a building is placed in the city its point value is added to the ranking. When it is removed, its value is subtracted.
The points calculation method is different for Great Buildings and for all the other city buildings.
====[[File:Rank7.png]] City buildings
The ranking points for each building is calculated in the following way:
<blockquote>Width * Length * Building Type Factor * Age Factor</blockquote>
:For most of the buildings this factor equals 1. For Diamond buildings and event buildings* it is 2 (a building cannot be Diamond and event building at the same time). Town hall has the highest Building Type Factor which is 3.
:This basically means that Diamond buildings and event buildings are worth twice as much as a normal building from the same era.
'*Monasteries are considered event buildings and thus this factor is 2 for them.