Photo: Hannu Huovila / TVO, CC BY 3.0 via Wikimedia Commons
The source of a third of Finland's electricity, with three reactors. Reactor number 3 was expected to be finished in five years, in 2010, but was not ready for use until 2023. The plant has a visitor centre with a science exhibition. Check in time whether booking is needed and what security clearance is needed (you at least need an official ID).
The Olkiluoto Nuclear Power Plant is one of Finland's two nuclear power plants, the other being the two-unit Loviisa Nuclear Power Plant. The plant is owned and operated by Teollisuuden Voima (TVO), and is located on Olkiluoto Island, on the shore of the Gulf of Bothnia, in the municipality of Eurajoki in western Finland, about 20 kilometres (12 mi) from the town of Rauma and about 50 kilometres (31 mi) from the city of Pori.
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Features a viewing platform and a Foucault pendulum; a pendulum which showcases the rotation of the Earth.
Yellow wooden church, finished in 1803 during the last few years of Swedish rule. As such it's also known as Kustaa Adolfin kirkko, Gustav Adolf's church, probably after Gustav IV Adolf who ruled Sweden (and Finland) at the time.