If you consider the needed street connection, this would increase the efficiency of big buildings as these generally are connected to relatively fewer streets than smaller event buildings.

Please keep in mind though that the streets needed to connect the building are also to be considered for the efficiency.

The following table considers for the efficiency only the space the building itself needs. This page shall help the player to decide which buildings to focus on. The Military Boost bonus rises indefinitely at a rate of +1 every other level past level 11. Cathedral of Aachen also provides coins every 24 hours. It provides military boost which increases the attack and defense of the players attacking army.

Especially the introduction of the Antiques Dealer allows the player to set their focus on getting buildings or upgrade kits of older event buildings. The Cathedral of Aachen is a Great Building of the Early Middle Ages. Forge of Empires gives the player the option to choose from a variety of Forge Points producing buildings.

Forge of empires great buildings best