The
ancient Roman town Nais, present-day Nis, was an important frontier fortress
of the Roman Empire. It was there that the Emperor Constantine was born.
A superb bronze head of the Emperor, discovered in Nis, is now in the National
Museum in Belgrade. The remains of the Roman summer resort Mediana, with
the foundations of villas, mosaics and marble figures, have been unearthed
in the vicinity of Nis. A 6th century Byzantine tomb, discovered in the
city, includes well-preserved frescoes with zoomorphic and floral motifs.