On the southwest side of the prefecture of Kastoria, very close to the village Nostimo there is the Petrified Forest.
It is scientifically proven that 15 to 20 million years ago, the flow of rivers had created a huge delta on which a sub-tropical forest was created. The trees of the forest were oaks, beeches, chestnuts, and palm trees. But a big volcanic explosion led to the petrification of the forest with truly impressive results.
Among the findings, the visitor can see, petrified tree logs, a petrified palm tree, the only one found in the Greek mainland, sea fossils such as shells, starfish, as well as the tooth of a huge shark.
The museum of the Petrified Forest is located in the village Nostimo and includes without any doubt some really interesting findings.