A UFO-like treehouse has appeared in a Finnish forest.<br /><br />The otherworldly creation has been built by a firm usually known for making high performance electric cars.<br /><br />Swedish company Polestar constructed the micro space tree house, dubbed KOJA, based on a design by Finnish designer Kristian Talvitie.<br /><br />The concept received an honourable mention in the 2021 Polestar Design Contest, so the company decided to bring it to life to mark the launch of the 2022 contest.