These are magnetic maps of geological survey in Finland. Surprisingly, there are many giant aliens laying underground. These pictures show a burial site, from the Orosirian and the Statherian Periods. One buried alien has a tool placed next to him, which is very similar to objects painted in the hands of "ancient astronauts" in Val Camonica, Italy.
There is a video "Alien Burial Site" about this site with further information. https://youtu.be/yLvF0mga1rU