This is rather fun. In the USA a system or company called PODS delivers a small container with a sort of gantry crane as part of the lorry.
Ignore the video subject just go to about 1min in to watch the container unload itself.
https://www.youtube.com/watch?v=Gj9ZWVZAf3I&list=PLctZwx0DYDIZ4fgWVhuQZxc6MRiHIqxyR