This area of the Pannonian region was at first settled by a celtic tribe (Eravasci). Around a.d. 41-54, 600 men of a Roman legion stationed here and gradually the city rises around the military settlement. In a.d 106 Aquincum became the Capital city of the Pannonian Inferior region. This area today is situated in the Óbuda district within Budapest. Acquincum is the Roman civil settlement, well-conserved throughout the centuries and converted today into a museum with inside and open-air sections. The Roman Ruins in Aquincum have been dated around the II and III century (a.d.). This area was the focal point of the commercial life of the Pannonian province. During the excavation works, the archaeologists have discovered many objects and monuments that testify the glory of this age. The ancient town had paved street and lavish houses with fountains, courtyards and mosaic pavements. Although today not all of those marvels remain intact, it is possible to distinguish their structure, such as the the market (Macellum), the public baths, the christian church and a temple dedicated to God Mitra, the most important divinity that in that period competed against christianism on this territory. The Aquincum museum (Aquincumi Múzeum), built at the south western edge of the ruins of the settlement, permits to contextualize the finds thanks to an outstanding collection of coins and mural paintings. A professional Budapest tourguide can show you the copy of the portable organ and the mosaic that shows how it worked. Settled at the north west of the ruins beyond the shafts of a roman aqueduct, rises the civil amphitheater where it is still possible today to see the cells in which the lions were kept and the death gate through which the corpses of the dead gladiators were transported. This is the biggest and most important monument discovered. It was realized during the I century (a.d). Its dimensions are 130x110 meters and its capacity is about 16.000 people. Another great discovery is the three-level aqueduct. The Aquincum Museum shelters a reconstruction of the hydraulic system, roman houses and the paintings that have been recovered.