Rjukan, Norway, has a sunlight problem. Not only is the town subject to the long, dark winter days you expect in Scandinavia, it’s also tucked deep into a steep valley. For six months out of the year, sunlight will strike a ridge above town, but never reach the people below. In 2002, artist Martin Anderson moved to town and soon decided he simply couldn’t abide the lack of sunlight. So he pushed for the erection of three massive mirrors that direct sunlight to the town square below. Now, townsfolk flock to the sunbeam as it sweeps through town, soaking up their vitamin D for the day. You can read more about the brilliant solution here.