Find the trace of a catastrophe

On the northern periphery of Poznań there is a mountain. Photographs of it are amazing. You read the caption, "the highest elevation in Wielkopolska" and on the photograph the horizon is almost totally flat.

In fact, Góra Morasko (Morasko Mountain) is only 154m above sea level. It obviously isn't a summit to attract lovers of Alpine climbing.

However, it is worth visiting because of a phenomenon unique in Europe.

Surrounding the mountain there are five small water features. Over the years they were thought to be the remains of glacier activity. Even the incident where an 80kg lump iron ore was found by some locals digging a trench didn't change this belief. After that more and more such pieces of iron were found.

"It's a meteorite!" the scientists exclaimed, and those water features are the craters that were created as an effect of a meteoritic collision with the Earth, as they finally realised in the 1970s.

This catastrophe took place five and a half thousand years ago. The meteorite's impact was as powerful as the explosion of an atomic bomb. You can find another crater like these in the vicinity of Frombork, but that's only a single crater. So, you see, it's well worth visiting the exceptionally flat Góra Morasko.