Giant Icicles
From WikiRaider
The Giant Icicles are obstacles in Tomb Raider Legend, appearing in the level Nepal - The Ghalali Key. Lara can climb on them like on Vertical Poles and jump from one to the other, however they are unstable and will begin creaking and breaking from the ceiling once they have to carry Lara's weight. She will fall to her death once they detach from the ceiling. So she has to hurry to reach safety.