Dzhumaya mosque is a medieval Islamic temple located adjacent to the Roman stadium. Conflicting historical data place the date of its founding either in the 14th century, or, more commonly, in the 15th century, and some historians suggest that it was built atop an earlier Christian temple. It is one of the biggest and oldest mosques in the Balkans and features uncommon architectural elements such as multiple domes – a total of 9 domes. It contains wall murals created between the 17th and 19th centuries, and one of its external corners has a sundial built into it. Today, it is still an active place of worship.