Nero's Golden House (the Domus Aurea) in Rome was a sumptuous palace complex which played host to the wild parties of one of Rome's most notorious emperors. Besides using the finest marble and decoration such as fine wall-painting and gilded colonnades, the building was also a technical marvel with soaring domes, revolving ceilings, ornamental fountains and even waterfalls running down the walls.
This is a companion discussion topic for the original content at https://www.worldhistory.org/article/661/neros-golden-house-domus-aurea/.