The windows were of crystal, beryl, and other transparent stones.

The floor was of translucent crystal, under which all the fishes of the sea were carved out of onyx, just like life.

The towers were of precious stones inlaid with gold; their roofs of gold and blue enamel.

Upon every tower there was a crystal cross, and upon it a golden eagle with expanded wings, which, at a distance, appeared to be flying.

At the summit of the main tower was an immense carbuncle, which served, like a star, to guide the Templars thither at night.