The Basilica Cistern is a remarkable underground structure, built in 532 by Emperor Justinian as a crucial water reservoir for the city. Among the many cisterns constructed during that era, this one stands out as the largest and most famous.
Stepping inside, visitors are met with a vast space that feels almost like a cathedral. The cistern boasts 336 columns, each richly decorated and rising from the water below. These columns create a forest of stone, and their design gives the place a mysterious and majestic atmosphere.
In the past, the cistern could be explored by gliding through the water in a small rowing boat. Today, rising visitor numbers and lower water levels have changed the experience. A boardwalk has been installed, allowing people to stroll through the cistern while enjoying dramatic lights, piped music, and even art installations. At times, the space transforms into a film location or hosts unique concerts, adding to its modern cultural role.
While the cistern remains an impressive sight, large crowds are now a common feature. This popularity can sometimes lessen the tranquil atmosphere that once prevailed. For those seeking a quieter exploration, lesser-known cisterns in the city might offer a more peaceful alternative.
Source - https://en.wikipedia.org/wiki/Basilica_Cistern