Photograph of the upside down Medusa head in The Basilica Cistern (Yerebatan Sarnıcı) in Istanbul
{"Image ImageDescription": "Located in the northwest corner of the cistern, the bases of two columns reuse blocks carved with the visage of Medusa. The origin of the two heads is unknown, though it is thought that the heads were brought to the cistern after being removed from a building of the late Roman period. There is no written evidence that suggests they were used as column pedestals previously. Tradition has it that the blocks are oriented sideways and inverted in order to negate the power of the Gorgons' gaze.", "Image Make": "Canon", "Image Model": "Canon EOS 5D Mark II", "Image XResolution": "72", "Image YResolution": "72", "Image ResolutionUnit": "Pixels/Inch", "Image Software": "Adobe Photoshop Lightroom 4.0 (Macintosh)", "Image DateTime": "2012:04:15 17:40:35", "Image Artist": "John Cavacas", "Image Copyright": "John Cavacas", "Image ExifOffset": "776", "Thumbnail Compression": "JPEG (old-style)", "Thumbnail XResolution": "72", "Thumbnail YResolution": "72", "Thumbnail ResolutionUnit": "Pixels/Inch", "Thumbnail JPEGInterchangeFormat": "1352", "Thumbnail JPEGInterchangeFormatLength": "18879", "EXIF ExposureTime": "15", "EXIF FNumber": "28/5", "EXIF ExposureProgram": "Aperture Priority", "EXIF ISOSpeedRatings": "200", "EXIF ExifVersion": "0230", "EXIF DateTimeOriginal": "2012:04:06 15:29:30", "EXIF DateTimeDigitized": "2012:04:06 15:29:30", "EXIF ShutterSpeedValue": "-3906891/1000000", "EXIF ApertureValue": "2485427/500000", "EXIF ExposureBiasValue": "0", "EXIF MaxApertureValue": "4", "EXIF MeteringMode": "Pattern", "EXIF Flash": "Flash did not fire, compulsory flash mode", "EXIF FocalLength": "19", "EXIF SubSecTimeOriginal": "86", "EXIF FocalPlaneXResolution": "5616000/1459", "EXIF FocalPlaneYResolution": "1872000/479", "EXIF FocalPlaneResolutionUnit": "2", "EXIF CustomRendered": "Normal", "EXIF ExposureMode": "Auto Exposure", "EXIF WhiteBalance": "Auto", "EXIF SceneCaptureType": "Standard", "EXIF BodySerialNumber": "3731710907", "EXIF LensSpecification": "[17, 40, 0/0, 0/0]", "EXIF LensModel": "EF17-40mm f/4L USM"}