Fear of heights is one of the most common phobias out there.
After all, humans are pretty delicate beings. When it comes to falling from great heights, we pretty much snap like twigs. Some people manage to overcome that fear, however, to scale walls and step out over the Grand Canyon.
At the Market Square Tower in Houston, Texas, one architect has taken this concept and translated it into a hanging swimming pool that stretches ten feet out over the street below. Yikes!