Science themes continue in the summer also outside
Admission to the Science Park Galilei is included in the price of the Heureka ticket in summer.
In the outdoor area in Galilei, there is an opportunity to try out large-scale objects based on the phenomena of music, mathematics and physics, many of which involve water. In addition, in the outdoor area you can find e.g. wheelchair track, where you can test how moving around with a wheelchair is different through level differences, doors and thresholds.
In front of Heureka
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Penrose tiling
In front of Heureka's main entrance is a round tiled area where the so-called Penrose tiles. Penrose tiles are a way to cover a plane continuously with a small number of different polygons. They got their name in the 1970s after the mathematician Roger Penrose.
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Stone park
Kivipuisto's 124 stones represent Finland's bedrock. The stones have been placed in the area by province, from Ordovician limestone imported from Åland all the way to gold ore from Kittilä. In addition to boulders, there is a piece of post-glacial beach pebbles from Vantaa. The boulders have been obtained as donations from entrepreneurs in the stone industry, the Geological Research Center, mining companies and some municipalities.
Also read
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Winter tips for visiting Heureka
The most fun and interesting winter day program is a trip to Heureka! We have interesting and exciting programs for all ages.
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H18: Après-ski 14.2.2026
We're celebrating Valentine's Day among adults at the H18: Après-ski event on Saturday, February 14th 7pm–12am. There will be science, mint chocolate and an après-ski atmosphere!
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Finland's most curious class
Finland is full of curious schoolchildren and we want to find the most curious class. The Finland's Most Curious Class competition is organized for the second time. The competition runs until February 28th.
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Heureka's winter holiday camps 2026
Note! The camps are in Finnish. Are you looking for a winter holiday camp for your child in the Helsinki Metropolitan Area? Heureka is organizing two-day science camps for curious primary school children in week 8. Tickets are on sale until 11.2. 3 pm or until the camps are sold...
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Counting test online (in Finnish!)
Heureka's free online test lets you test your counting skills. Note! The test is in Finnish.
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Heureka's extended Friday evenings
We are open with extended opening hours on Friday evenings until 8pm. Read more about Friday evenings at Heureka on this page.
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The renewed planetarium is open
The planetarium has undergone the biggest transformation in its history! Heureka's planetarium is now one of the brightest, most colorful and detailed presentation environments in Europe.
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Thursday evening ticket for 10 €
Note! In 2026 the discount does not apply to Thursday evenings 19.2., 26.2., 2.4., 30.4., 14.5., summer season 1.6. - 9.8., 15.10., 24.12. and 31.12.2026. On Thursdays from 15:00–20:00, all entrance tickets are 10 €/each. Children under 5 years of age can enter Heureka free of charge accompanied by a guardian.
