Caldera Air
From A KoL Wiki
You ascend to the top of the volcano and find, to your surprise, a steel stairway leading directly into the lava. How convenient! And also, this proves it! Lava can't melt steel beams!
You hold your breath and start to descend the stairs. You feel all of your body hair curl up and sublimate as you near the surface, and take a moment to be thankful that you are holding your breath.
Occurs at The Bubblin' Caldera.
References
- A common refrain for 9/11 conspiracy theorists is that "jet fuel can't melt steel beams".