Stable

Stable are used for train an cavalier.. at any tribe have a different cavalier you can train at here. for this building u just can build 1 at every village after u reach it to lvl 20 u can

Barrack

Barrack are used for train an army/troops.. at any tribe have a different troops you can train at here. for this building u just can build 1 at every village after u reach it to lvl 20 u can

Trapper

trapper what is it for?? of course this building used for make some trap for defending your village from the rider..
this building just can build up but gaul tribe.. the other tribe can't build this building..

Relay Point

Relay Point. What is it for??
are it just for fulfill the requier if we want to build barack??
hm.. i think didn't like that..

Hero Mansion

hero mansion.. what is it for??
this is the building where u can train a hero for your village.. but every account just can train 1..
so you must chose ur hero wisely.. ^^,