A watchtower

A watchtower, but it doesn't say who it belongs to. At the least, it will provide some shelter high off the ground and unparalleled sight. You know that whoever owns it won't have too many men there, probably no more than two, and likely not heavily armored. A watchtower isn't the place to send your heavy armored and armed troops, after all. Likely just a few scouts.

Sounds like a safe bet to you. Stuffing the map in your back pocket you start off.