(soft music) - [Narrator] Of the 15 most damaging hurricanes in US history, only two were category five. - Hurricane categories are based on wind speeds and only wind speeds. - [Narrator] But what often creates the most damage is water.- Given all of the new codes, most homes can really survive category five winds. However, they can also float away fully intact. - [Narrator] Yet this one town, Babcock Ranch, has been hit by four hurricanes and basically came out unscathed.There was no flooding at all. - [Na ...