Rjukan, Norway, known for its darkness in winter, is located in the bottom of a valley between steep mountains in Telemark County, about 90 miles west of Oslo. The idea to use mirrors to reflect sunshine during the winter was launched 100 years ago but will finally become a reality after the official opening on Oct. 31.
According to the project's website, "computer-driven mirrors will follow the sun's movement over the horizon and will reflect its rays into Rjukan's market square."
