picture of man on roof of skyscraper for article

An Experience in Fear, or is it?

Imagine.. that you’re standing in the middle of a very small terrace on top of one of the tallest buildings in the world like the “Sears Tower”. Look down at your feet in your minds eye and notice what you’re standing on. Are you standing on asphalt, marble, concrete, wood, metal, tile or granite? What is this Terrace made out of?