Dark Sun: The Tyrant of Tyr
Beautiful but awesome, the Stadium Gate is constructed to resemble the gaping jaws of the Dragon. Large triangular-cut stones mimic the teeth of the mightiest beast on Athas line the interior tunnel between the gate openings. Two huge, jagged slabs of stone sit just on the inside the walled city. In times of war, these stones may be pushed in to seal the throat of the Dragon. It is said that vents connected to the upper wall allow hot oil or heavy poisonous gas to be poured down the front nostrils of the carving. The carvings of this immense predatory creature appear on either side of the tunnel.
The gate is used during the week to allow slaves to travel from the slave pits to the city owned fields, then back to the pits at night. Additionally, the Stadium Gate is used by travelers entering the city to attend gladiatorial games. At all other times, the gate is kept closed and locked. Templar guards man the gates questioning and tithing all who enter.