Los tells gemelos de la antigua y la nueva Nisa marcan el emplazamiento de una de las ciudades más antiguas e importantes del Imperio Parto, que fue una gran potencia desde mediados del siglo III a.C. hasta el siglo III de nuestra era. Durante casi dos mil años, ambos tells han permanecido relativamente incólumes y conservan, todavía enterrados, los vestigios de una gran civilización antigua que supo aunar con ingenio su cultura tradicional y elementos de dos culturas occidentales: la helenística y la romana. Las excavaciones arqueológicas efectuadas en las dos partes que integran el sitio han puesto de manifiesto la existencia de una arquitectura ricamente ornamentada e ilustrativa de la vida doméstica, oficial y religiosa de los partos. Situado en la encrucijada de importantes rutas comerciales y estratégicas, el poderoso Imperio Parto fue un bastión contra la expansión romana y un importante centro de comunicación e intercambios comerciales entre el este y el oeste, el norte y el sur.

Valor universal excepcional en inglés

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 monuments of Turkmenistan. Nisa is also one of the eight State Historical and Cultural Parks (SHCP) that have been created to protect the most significant sites in Turkmenistan. A buffer zone has been established. The property comes within the provisions of the Bagyr town development plan. Serious efforts are still needed to set up an efficient preventive maintenance scheme that will ensure the survival of recently excavated parts of the site. A five-year plan has been formulated for 2006-2010, in order to ensure a better balance between the different activities (e.g. archaeology vis-à-vis conservation) and to combine and harmonize all the existing documents and strategies relating to the site.