The tower is a non- flammable wall that can't be jumped over.
The tower can be (and is) most commonly used for protection and making certain areas off limits only to others. It is most useful on fortifying Cliff Island, as it can completely block users from scaling it or getting into it's cave. It can also be used to store items without it being stolen. It can also be use to make a decorational lighthouse by placing a torch on top of the tower.
Stone Segment x4 = 1 Tower