Akkale, Roman archaeological complex in Kumkuyu, Turkey.
Akkale is a Roman archaeological complex featuring a five-story main building, administrative structures, and one of the largest cisterns in the Cilicia region. The compound displays limestone masonry and elements indicating its role as a port administration center.
The site was built in the 4th century as a Roman port administration center. Damaged by earthquakes in the 6th century, it underwent repairs during the Byzantine period.
The building displays a rectangular limestone structure with a rare dome on pendentives, originally thought to be a church. This architectural solution was unusual in the region and hints at the site's wealthy status.
The site sits about 250 meters from the Mediterranean Sea and connects directly to highway D.400. Visitors can reach it easily from both Erdemli and Mersin.
The massive cistern held over 17,000 cubic meters of water and served as a supply station for passing ships. This capacity made it a vital facility for Mediterranean trade.
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