Üllő5 is an archeological site in Hungary, near the village of Üllő, next to Budapest. It was excavated between 2002 and 2006 when the southeastern section of the M0 motorway, the bypass road of Budapest, was built. It was the greatest excavation in the history of Hungarian archeology; 40 hectares were excavated, yielding a total of 8,200 objects. Due to the huge territory to be covered and the sheer number of workers and machines involved, six archeological teams worked together simultaneously on the excavation, although only part of the territory has thus far been excavated.