Although still mostly buried beneath sumptuous Georgian streets, the Roman ruins in Bath are unsurpassed in Britain. Some believe Bath's Roman art and grandeur to equal any in the empire; certainly Bath has no rivals north of the Alps. About 2m below the present level of the city, the Romans started building their great baths and temple at the sacred spring soon after the Conquest, in the middle of the 1st century AD. They named their city Aquae Sulis and soon transformed the Celtic druids' grove into one of the major therapeutic centres of the West. The Romans revered the spring just as the Celts had done; by the 3rd century its stunning temple and luxurious baths attracted pilgrims from throughout the Roman world. The Dark Ages saw the site abandoned and disappear from sight. The Roman remains were discovered (much like at Pompeii) in the late 18th Century and were excavated over the years. The Roman Complex is in the modern-day city of Bath, which is renowned for these Roman antiquities and the impressive Georgian architecture built during the city's heyday at the end of the 18th century. The site is now on two levels, the Roman structures below ground and the medieval and later structures above.