Basilica Cistern - Free Audio Guide

The Yerebatan Sarnıcı (Basilica Cistern) in Istanbul is a monumental 6th‑century underground water reservoir built during the reign of Byzantine Emperor Justinian I to supply the Great Palace and nearby buildings. Its cultural significance lies in its scale and reuse of antique columns—336 marble columns supporting a forest‑like ceiling—and emblematic features including two Medusa heads repurposed as column bases. Key attractions are the atmospheric, columned hypostyle hall, reflective pools with carp, and the Medusa sculptures; conservation and lighting emphasize architectural detail. The site is generally open year‑round with seasonal variations in hours; admission is charged with reduced rates commonly available and some museum passes sometimes accepted. Accessibility is partial: access involves steps and damp surfaces, and while adaptations and assistance exist, some areas may be difficult for visitors with limited mobility.