Icherisheher, also known as the Old City of Baku, is the historic heart of Azerbaijan’s capital. Enclosed by 12th-century defensive walls, this UNESCO World Heritage Site showcases a rich tapestry of architectural styles, reflecting influences from Zoroastrian, Sasanian, Arabic, Persian, Shirvani, Ottoman, and Russian cultures . Key landmarks include the 12th-century Maiden Tower, believed to be built atop earlier structures dating back to the 7th to 6th centuries BC, and the 15th-century Shirvanshahs' Palace, a masterpiece of Azerbaijani architecture . The labyrinthine streets, historic mosques, caravanserais, and bathhouses offer visitors a glimpse into Baku's storied past. Despite urban pressures, Icherisheher remains a vibrant testament to the city's enduring heritage.