Palmyra; Tetrapylon exterior, procession relief. Date of photograph: 1977. Image and original data provided by Sheila S. Blair and Jonathan M. Bloom.

View of the Tetrapylon in Palmyra, Syria, an ancient Roman monument featuring four groups of tall columns topped with ornate capitals and lintels. The structure stands amid a vast expanse of ruins, with additional colonnades and remnants of buildings visible in the background. The scene is illuminated by natural light under a clear blue sky, emphasizing the grandeur of the archaeological site.

Palmyra; Tetrapylon exterior, procession relief. Date of photograph: 1977. Image and original data provided by Sheila S. Blair and Jonathan M. Bloom.