Biblical Thebes (Ezekiel 30:14-16) is identified with Luxor, Egypt. Karnak was a vast temple complex dedicated primarily to the god Amun.
Our photo shows the sacred lake of the Karnak Temple.
Todd Bolen writes:
Every Egyptian temple had a sacred lake, and the one at Karnak Temple was the largest. Used daily by the priests for purification, the sacred lake was also used in festivals during which images of the gods would travel across the lake in boats. The lake measures 130 x 77 meters and was surrounded by storerooms and homes of the priests.
Our view here of the sacred lake is to the southwest.
Click on image for larger view.