ok, the devs have asked for adjacent tile ideas here are some.
Irrigation channel - this tile is placed next to a farm, which increases its output by X.
Work Camp - this is a universal tile that can be placed next to mines, lumber yards, and farms or other harvestable resource. it increases the output by X, gives Y housing, but lowers prestige by Z. if adjacent to more than 1 resource gives bonus to each.
Educational Center(probably a better name for this) - this is a tile that can be placed next to a school or other research building. it increases learning by X, but costs y amount of gold for upkeep. the reason being that its like education assistance. the sovereign foots the bill so that people can get a free education. improves research, but costs the empire money.
Ranch - i think that if four farms are built adjacent to each other they should merge to become a ranch. this would improve food output to X due to more organization.
Mine Depot - this is placed adjacent to a mine. its a place for storage, processing, and shipping and management. it would increase the output of the mine due to more efficient work.
hmm, that's all i can think of now, but i am sure i will be back with tile pack 2 idea.
your thoughts?