Powerhouse Telemark was one of the world's most anticipated architectural projects of the last couple of years (CNN) and for good reason. The building is carbon-negative. Not only is it energy efficient, but it was designed by internationally renowned Snøhetta. There are various workspaces to choose from, meeting rooms that can be booked, a bright canteen and a stunning rooftop. There is also a gym and showers for those feeling sporty.