Ezekiel 40:14-16

14Then he did the pillars—60 cubits. A gateway extended all around to the pillar of the courtyard.

15Now from the front of the gate of the entrance to the front of the inner porch of the gate measured 50 cubits.

16There were shuttered windows toward the chambers and toward their pillars within the surrounding gate, and likewise the porches had windows all around inside. On each pillar were palm trees.