The arches of the Valens Aqueduct, completed in 368, span a busy avenue, fusing the ancient with the modern—a common juxtaposition in Istanbul.  Photo 6 of 10 in Inside Istanbul

Inside Istanbul

6 of 10

The arches of the Valens Aqueduct, completed in 368, span a busy avenue, fusing the ancient with the modern—a common juxtaposition in Istanbul.