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Osor is a small settlement known as a museum town. It is located in the southwestern part of Cres and has always been important for islanders and sailors. Osor was built next to a canal with a movable bridge, which is also the only road connection between the island of Lošinj and Cres.
The bridge is a famous tourist attraction, the opening and closing of which is watched by many visitors. It opens daily at nine in the morning and at five in the afternoon. The former name of Osor is Apsoros. It is on this part of the island that the islands of Losinj and Cres were once united, but now they are separated again. Osor is a city with more than 4,000 years of history, which is surrounded by walls from different periods. It is known as an open-air museum, as the history of the city is visible at every turn.
Osor was already inhabited in prehistoric times, but it experienced its economic boom only in the period of antiquity. In that period, Osor was an important transit town with a population of 5000 people.