Heidi sent anoher card a few days ago. She and 2 other finnish postcrossers met a polish postcrosser, Mikis, in Helsinki.
Photo by Eija Hiitunen
The Power Plant Museum sits near Vantaanjoki River, where Helsinki was founded in 1550. The power of this river's rapids was used to create energry from the year 1550 to the early 20th Century. The museum displays the evolution from this old water mill to the most modern power systems. The Power Plant Museum honors the industrial heritage of the area by producing green energy. - in: http://helsinki.cityseekr.com/venue/668194-power-station-museum-helsinki-voimalamuseo-helsingin-kaupunginmuseo