The theme of this Undergraduate thesis is "Valorization of Roman heritage in Istria". The emphasis is on the most important examples of Roman heritage on the Istrian peninsula as well as their uniqueness, valorization and protection and on the very concept of heritage and material heritage as important items of the cultural identity of an country as well as the importance of heritage management in general. Croatia is largely faced with the problem of insufficient valorization of monuments that are then left to decay or on the other hand, even overexploitation of some monuments for tourist purposes where environmental pollution, deliberate devastation of heritage appear. That is why educated personnel is important to deal with the valorization of unused objects and the recovery of those overused. This paper also deals with some segments of Roman monumental heritage that are not sufficiently valorized, so understanding of their value is hard. The Roman period in Istria is a very long period of time. During their reign, Istria was at the height of its power. The Romans, in addition to architecturally, changed Istria culturally, brought Latin language, fashion, trading and many other things. Material remains are witnesses of the power of this nation, which, among other things, was the greatest military force of that time and this is best witnessed by the destruction of Nesactium in 177. B.C. and the establishment of a new city in this area. . In addition to architecture and warfare, the Romans are also known for a comfortable and luxurious life, as evidenced by the remains of a maritime villa on Brioni. The stories of luxurious feasts, rooms covered with marble overlooking the sea awake the imagination of every visitor to the Brioni National Park and the Vižula Archaeological Park. Consequently, material heritage is an inestimable wealth whose loss has far-reaching negative consequences for both present and future generations.