The Lookout Tower is an early game organization structure that provides a tall platform for good view for building.
The tower comes with a ladder at the central frame to allow the pioneer to climb onto the platform, which is elevated 18 meters from its foundation. Fall damage will be taken when jumping off of the tower unless Blade Runners are equipped. While standing on it, Lookout Towers can provide limited support for factory constructions, Power Slug and artifact hunting, reaching high places, to name a few.
To reach even higher places, consider building chained Ladders instead.