Gamzigrad is an archaeological site located in Serbia, known for its well-preserved remnants of a Roman city called Felix Romuliana. This site was built in the late 3rd and early 4th centuries AD and is recognized for its impressive palatial complex, which includes temples, baths, and fortifications. In 2007, Gamzigrad was designated a UNESCO World Heritage Site due to its historical significance and architectural value. The site provides valuable insights into Roman urban planning and the cultural influences of the time, making it an important destination for historians and tourists alike.