Chalke

The Chalke Gate (Greek: Χαλκῆ Πύλη), was the main ceremonial entrance (vestibule) to the Great Palace of Constantinople in the Byzantine period. The name, which means "the Bronze Gate", was given to it either because of the bronze portals or from the gilded bronze tiles used in its roof. The interior was lavishly decorated with marble and mosaics, and the exterior façade featured a number of statues. Most prominent was an icon of Christ which became a major iconodule symbol during the Byzantine Iconoclasm, and a chapel dedicated to the Christ Chalkites was erected in the 10th century next to the gate. The gate itself seems to have been demolished in the 13th century, but the chapel survived until the early 19th century.