The Traps of Madness are located within the Cliffs of Madness.
They contain an area with multiple holes in the floor, giant stone block, and a lever. In order to survive, Kratos must pull the lever and push the block over to a high ledge, and jump before multiple spikes rise up and skewer him. If he survives, then he can collect the Necklace of Aphrodite and move on in Pandora's Temple.