Acrophobia (from the Greek: ἄκρον, ákron , meaning "peak, summit, edge" and φόβος, phóbos, "fear") is an extreme or irrational fear or phobia of heights, especially when one is not particularly high up. It belongs to a category of specific phobias, called space and motion discomfort, that share both similar etiology and options for treatment.

Most people experience a degree of natural fear when exposed to heights, known as the fear of falling. On the other hand, those who have little fear of such exposure are said to have a head for heights. A head for heights is advantageous for those hiking or climbing in mountainous terrain and also in certain jobs e.g. steeplejacks or wind turbine mechanics.

Acrophobia sufferers can experience a panic attack in high places and become too agitated to get themselves down safely. Approximately two percent of the general population suffers from acrophobia, with twice as many women affected as men.

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Sunday, 10:00 am

JongKook from Hapcheon had a work offered at Seoul. He's been three month at Seoul but never once he had a chance to look around the city. Today was his day off and he plan to stroll around Seoul city.

When he was looking around the tall building, he bump to a lady. "I'm sorry Miss", "I'm sorry Sir" they say in unison and bow lightly. JongKook smile and the lady also smile to him. The lad