Beneath the bustling streets of Istanbul lies a remarkable subterranean world: the Basilica Cistern. This ancient water reservoir, built during the reign of Emperor Justinian I in the 6th century, is a testament to the ingenuity and architectural prowess of the Byzantine Empire. Known in Turkish as “Yerebatan Sarnıcı,” which translates to “Cistern of the Sunken Palace,” this underground marvel is one of Istanbul’s most captivating historical sites, offering visitors a glimpse into the city’s rich and layered past. Historical Background The Basilica Cistern was constructed in 532 AD to…