Answer:
(Here you go!!) Poe's use of various symbols demonstrates the violence and terror imposed by the Spanish Inquisition: the extinguished white candles demonstrate hopelessness; the grotesque and terrifying pendulum represents the unceasing passage of time; the steaming, glowing pit symbolizes hell and the moving wall.
The Lions ("The Veldt") In the first story in the collection, "The Veldt," the lions in the virtual reality playroom are symbols for what the children have become as a result of it.
The Man ("The Man")
The Rain ("The Long Rain")
The Sun Domes ("The Long Rain")
The Rocket ("The Rocket")