Archaeologists say they have unveiled what they believe to be remains of the "dining room" of the Roman emperor Nero, part of his palatial residence built in the first century.
Lead archaeologist Francoise Villedieu says her team discovered part of a circular room, which experts believe rotated day and night to imitate the Earth's movement and impress guests.
Villedieu told journalists Tuesday that the room on the ancient Palatine Hill was supported by a pillar with a diameter of 4 meters (more than 13 feet). She says only the foundation of the room was recovered during the four-month excavation.
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