Experience the underground marvel of Istanbul, the Basilica Cistern, with a fast-track entry ticket. Upgrade your experience by adding an informative audio guide. Delve into a 6th-century Byzantine water storage facility, constructed by Emperor Justinian I to provide water to the Grand Palace of Constantinople. Marvel at the 336 marble columns, arched ceilings, and the mysterious Medusa head columns.

Your fast-track entry ticket allows you to bypass the regular queues and enter the Basilica Cistern directly. The optional audio guide offers insights into the construction of the cistern, its significance in the Byzantine Empire, and the myths surrounding its features. As you traverse the dimly lit passageways, you will come across the iconic Medusa head columns and a vast body of water mirroring the ancient architecture.