Through many donations and as a result of several international expeditions (such as the Novara frigate), the museum has developed a range of exhibits.

While keeping a zoological address, it now has flora, geological, and paleontological specimens and a large library containing works in various languages.

Among these, Antonio dinosaur, a specimen of Tethyshadros insularis dated 75 million years ago, is the most important exhibits of the museum.

The hall contains a showcase with Rudists, ancient marine bivalves living on sea bottom became extinct 65 million years ago, that are the most common fossils in Karst calcareous rocks.

4-meters long and 1.3-meters tall, Tethyshadros lived on an island in the Western part of Tethys Ocean, between Africa and Northern Europe.

The hall includes other dinosaur exhibits from the same locality: front legs, a vertebra, a pelvis bone, a skull.

The third room takes visitors into the city to observe the food chain and inner workings in a modern setting.