Yerebatan Sarnıcı, Istambul, Tukey,
The famous "temple" of 300 columns is actually the Basilica Cistern, a great 6th-century underground water palace made of recycled columns from old buildings. It has 336 columns, 9 meters high, arranged in 12 rows.
The Romans and Byzantines used pieces of old temples to build it, so each column is different. In the background, there are two column bases with Medusa faces, one on the side and the other upside down. It was commissioned to be built by Emperor Justinian I in 532.

















