Teardrop trailers called BeauEr 3X are manufactured by Beauer, a French company.
This camper looks compact and small on the road, but it can expand 3 times its size up to a total interior space of 129 feet.
With the simple press of a button, the walls expand and slide out to equal 129 feet long in 20 seconds, with furniture perfectly included.
Watch the video and see it unfold.