Museum in Istanbul, Turkey
The Basilica Cistern, is the largest of several hundred ancient cisterns that lie beneath the city of Istanbul, Turkey. It is a chamber able to hold near 80.000 cubic meters of water, with the roof supported by 336 columns made of marble and arches in between.
photo credit: Hiro Otake İstanbul (Turkey) - Yerebatan Sarnıcı via photopin (license)
Alemdar Mh., Yerebatan Cd. 1/3, 34410 Fatih/İstanbul, Türkiye
Tram: T1 (Sultanahmet Station) Metro: Marmaray Line (Sirkeci Station)
+90 212 522 12 59
You should pay attention to "Medusa Heads".