Rally Point Max level 20 Barracks Max level 20 Stable Max level 20 Workshop Max level 20 Great Barracks Max level 20 Great Stable Max level 20 Great Workshop Max level 20 Academy Max level 20 Blacksmith Max level 20 Armoury Max level 20 Tournament Square Max level 20 City Wall Max level 50 RomansGreeksCarthaginiansAtlanteans Earth Wall Max level 50 TeutonsMongols Palisade Max level 50 CeltsEgyptiansPersiansScythi Trapper Max level 20 Celts Hero's Mansion Max level 20 Brewery Max level 10 TeutonsMongolsScythi Watchtower Max level 20 Espionage Center Max level 20 CarthaginiansEgyptiansScythi

Values for the Babylon server: speed x10, troop speed x5, production x4. Times are those with the building at level 1. Server Settings