A public building in Omišalj with an unbroken tradition dating back to the Renaissance.

During the Renaissance period, the town loggia stood on the Placa. In and around it, the people of Omišalj traded, held public meetings, and elected their representatives to the joint governing bodies, within the framework of the autonomous rights enjoyed by the municipality of Omišalj as a community of free citizens, both under the rule of the Counts of Krk and later under the rule of the Venetian Republic. It was also here that the difficult selection took place of those who were required to serve on the Venetian galleys, the backbone of the power of the Venetian Republic. The loggia was partitioned at the beginning of the 20th century. Today, it houses the Omišalj Malacological Collection, established in 2011 in cooperation with experts from the Natural History Museum in Rijeka. The collection of 675 specimens of snails, shells, and cephalopods was donated to the Municipality by Dr Branka Hameder Isensee, originally from Vukovar.

The collection also symbolically recalls one of the theories about the origin of the name Omišalj. According to some scholars, it developed through the Croatisation of the medieval Latin name a musclu, meaning Ad musculum in classical Latin — that is, “a place by the small shells or mussels.”