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Basilica Cistern
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Basilica Cistern

A sunken forest of columns beneath Sultanahmet.

Built in the sixth century to store water for the Great Palace of Constantinople, the cistern lies a few steps from Hagia Sophia. Walkways lead through rows of columns rising out of shallow water, lit from below.

Most of the columns were reused from older buildings, which is why no two capitals quite match — and why, at the far end, two carved Medusa heads serve as column bases, one on its side and one upside down.

What you will see

The Medusa heads

Two Roman blocks set under columns at the northwest corner, the cistern’s best-known mystery.

The weeping column

A column carved with tear-like shapes that is always damp to the touch.

Light on water

The columns reflected in the dark water, one of Istanbul’s most photographed interiors.

Good to know

  • Fast-track entry is included: it skips the ticket-counter queue.
  • The digital audio guide is an app you download, not a handset collected on site.
  • The ticket is for the daytime session; hours can change for maintenance or events.

Istanbul’s other three

Basilica CisternBuy tickets