Osijek, the largest city of eastern Croatia, has been located in the area along the Drava River for centuries.The area along the Drava River, by what we can prove, has been inhabited since the younger Bronze Age. Many culturesand peoples have settled on today's territory of Osijek because of its convenient position and fertile land.From Sopot, Vučedol to Celtic culture, they have all left their mark and legacy to the next generations. With the arrival of the Romans, the area of Osijek became the main cultural and economic center of southern Pannonia.With the Danube limes and protecting the borders of the Empire, Osijek first time in history gets the title of the city. Many merchants, prisoners and slaves brought with them different cultures and customs that eventually romanticized and became everyday. This paper will process parts of the ancient cultural history of today's Osijek, i.e. Mursa, the cruel fate of its ruins will be revealed, and possible tourist opportunities and potentials from what is left. The aim of the paper is to encourage the reader to think about the hidden city under the streets of Osijek today and to encourage reflection on the diversity of peoples and cultures that have walked the land we walk today. To create an impression with readers about how many cultures have emerged here and how many have disappeared. And to give the reader a view of the city of Osijek as a city with a rich cultural and historical tradition that has not been used to its full potential.