Asrai Lookout is a Wood Elves settlement building in Total War: Warhammer. A leafy vantage point, from which the Elves control their new territory.
Background
The Fey Folk place little or no importance on other races or their ways. Being so long-lived, outsiders' lives appear to the Asrai as those of 'mayflies' - a contemptuous and derogatory term but one which well illustrates their indifference. It would be reasonable to expect, then, that in conquest they do not make use of their enemies' buildings and infrastructure. Therefore, Elvish outposts are constructed, often within the trees of course, from which they control their captured territory.