These tall, multilevel cylinders would receive truck freight at the ground level, with robots then loading up delivery drones that would leave and return through dozens of windows dotted up the sides of the structure.

Amazon's vast order fulfillment centres are already otherworldly. A company that wants to be able to sell you everything needs a ton of space to keep its everythings in, and some real logistical intelligence to keep deliveries fast and accurate – especially as the company expands into groceries and fresh food.

But these massive warehouses that are generally located on the outskirts of cities will likely need to get closer to population centers when the company's long-awaited drone delivery service gets up and running.