Sorry for wrong info...... actually mixed up some info..... The correct info as far as Hong Kong airport is concern, this one was the most dangerous airport in the world before it got shut down in 1996.
It had so congested surrounding that lot of disasters happened while landing or taking off. Pilots had to go some special training for last time cancellation of landing.
Many times planes got plumbed into the sea, crashed with high tower building or near by buildings