Risan belongs to the group of the oldest coastal Illirian settlements, where the Illirian Quenn Teuta took shelter from the Romans in 228 BC.
The Archaeological remains tell the story about the luxurious villas, town walls and squares. The most interesting ones are the floor mosaics of the villas near the Risan Nikšić road, from the 2th Century. One of the mosaics show the God of sleep, Hypnos in a reclined position. This is the only preserved image of the god in mosaics.