Formed more than 290 million years ago during a volcanic eruption, the trunks of the Petrified Forest are among the oldest natural monuments.
of fossil plants and the main attraction of the Museum of Natural History. Once created from a donation to the city by Chemnitz residents interested in natural history, it
is now a modern museum and houses an important collection of palaeobotanical specimens and an insectarium. The history of the formation of the Petrified Forest can be loudly experienced every hour in the Museum of Natural History during a simulated volcanic eruption. The museum also operates a walk-through excavation site on the Sonnenberg.