Ancient Roman Emperor Galerius Maximianus built exclusive complex in his birthplace near town of Zajecar for himself and his mother Romula, hence the name Romuliana. Complex was heavily fortified with twenty towers and thick walls on trapezoid bases. Inside the fortifications, remnants of Ancient Roman temples, palaces and public buildings were uncovered. On the Magura Hill above Felix Romuliana, traces of two mausoleums were found where Galerius and his mother Romula were buried.
In late 3rd and early 4th century AD when Galerius used to live, giant Roman Empire was divided into four parts while new governing system called tetrarchy (fourfold government) was established by Emperor Dioclecian based in ancient Spalato, present day Split, Croatia. He adopted young Galerius who later became Dioclecian’s son in law and eventually, Roman Emperor. Galerius was remembered as persecutor of Christians since his mother was pagan priestess. Ironically, Felix Romuliana would eventually become property of Christian Church and later on, it was finally abandoned when Slavs named it Gamzigrad, meaning City of Lizards and Snakes as they infested the area. Since 2007, the archeological site Felix Romuliana has been listed as the UNESCO World Heritage Site.