Nisa was an ancient settlement located near the modern-day capital of Turkmenistan, Ashgabat. It is renowned for being the capital of the Parthian Empire, which dominated the region between the third century BC and the third century AD. Nisa is situated at the foot of the Kopet-Dag mountain range, providing strategic defense advantages and controlling the important trade routes of the time. The site consists of two tells, or settlement mounds, which are known as Old Nisa and New Nisa. Old Nisa, also known as Nisa Fortress, was a royal residence, and New Nisa served as a more commercial and residential area. The ruins of Nisa exhibit a wide array of cultural influences, including Hellenistic, Persian, and central Asian. Significant finds at Nisa include impressive fortifications, temple buildings, and richly decorated ivory rhytons (drinking horns), which allude to the wealth and importance of the Parthian Empire. UNESCO designated Nisa as a World Heritage Site, acknowledging its exceptional testimony to the cultural interchange in the region and its influence on the development of architecture, urban design, and art.