The Parthian Fortresses of Nisa consist of two tells of Old and New Nisa, indicating the site of one of the earliest and most important cities of the Parthian Empire, a major power from the mid 3rd century BC to the 3rd century AD. They conserve the unexcavated remains of an ancient civilization which skilfully combined its own traditional cultural elements with those of the Hellenistic and Roman west. Archaeological excavations in two parts of the site have revealed richly decorated architecture, illustrative of domestic, state and religious functions. Situated at the crossroads of important commercial and strategic axes, this powerful empire formed a barrier to Roman expansion while serving as an important communication and trading centre between east and west, north and south.

Nisa was the capital of the Parthian Empire, which dominated this region of central Asia from the mid 3rd century BCE to the early 3rd century CE. As such it formed a barrier to Roman expansion, whilst at the same time serving as an important communications and trading centre, at the crossroads of north-south and east-west routes. Its political and economic power is well illustrated by the surviving remains, which underline the interaction between central Asian and Mediterranean cultures. Criterion (ii): Nisa is situated at the crossroads of important commercial and strategic axes. The archaeological remains vividly illustrate the significant interaction of cultural influences from central Asia and from the Mediterranean world. Criterion (iii): The Parthian Empire was one of the most powerful and influential civilizations of the ancient world, and a brilliant rival of Rome which prevented the expansion of the Roman Empire to the east. Nisa, the capital of the Parthian Empire, is the outstanding symbol of the significance of this imperial power. The integrity and authenticity of the property, and also of the surrounding landscape, in terms of the size of the two tells and the siting of the capital at the foot of the Kopet-Dag mountains, are unquestionable. The two tells do not in any sense represent the original appearance of the Parthian capital, but their present appearance is due solely to natural erosion. The site is gazetted as one of the 1,300 historical and cultural…