You should collect the required blueprints via support chains of others members of your guild. Nothing in Forge of Empires is as profitable as this! As soon as the Statue of Zeus is placed, the next goal is to build the Cathedral of Aachen. The benefit is that through this investment, you will succeed in level 3 of the Guild Expedition every week. A recommended goal for every FOE player, is to complete a full set of Blueprints for the Statue of Zeusand then to build it. For collecting Blueprints, we recommend all players conduct Guild Hopping before you decide on a Guild.