City of light-Helsinki Finland

Impressive!

http://helsinkithevenue.sivuviidakko.fi/EN/news.html#uutis335:
"The Season of Light city happening will turn the Helsinki city centre into an inspiring journey of light stretching from the Esplanade to Parliament House. This year the free city event is larger than ever before, and the light artworks can also be viewed from the Light Tram."

more info: http://www.valonvuodenaika.fi/?lang=en#/tapahtuma