There are hundreds of different kinds of phobia, but only a handful are very common. One of these phobia is thefear of heights(acrophobia) . People with this fear are unable to look out the window of a talk building without feeling a panic attack coming on. Anothercommon phobia is the fear if being in confined spaces (claustrophobia) . People with claustrophobia commonly feel trapped when they are in small, enclosed places like elevators, tunnels, or closets. On the other hand, people who suffer from agoraphobia fear being in large, wide-open spaces, or places where leaving would be difficult. Agoraphobics generally avoid places like shopping malls, stadiums, and other crowded places. Some people develop such intense agoraphobia that they are notable to leave their home for years.