In the heart of the lush Nikola Host Park, within the walls of Count Nagroni's historic mansion, lies the Natural History Museum of Rijeka. It is the first regional museum in this part of the country and one of the oldest scientific institutions that Croatia takes pride in. The museum harmoniously combines the spirit of classical science with modern multimedia technologies.
Today, Rijeka offers its guests a unique opportunity to see more than 3 million exhibits. The collection covers various fields—from zoology and botany to geology. Special attention is given to marine flora and fauna, reflecting the city's inseparable link with the Adriatic Sea.

The museum's significance is underscored not only by its age but also by its modern approach to exhibitions. It serves as an important center for marine research and houses a specialized library, attracting both curious tourists and serious scientists from around the world.