They are not actually all hexagonal. They formed that way from the result of a volcano and cracks forming to bring the various shapes that they are.
The giants causeway is made up of hexagonal shaped stones of different heights, leading like a pathway into the sea
Basalt
The Giants Causeway is not in Belfast. It is about 98 kilometres or 61 miles from it.
Different ones have different amounts of sides. They are not all hexagonal, having 6 sides, as some people think. Some have less than that and some have more, from about 4 to as high as 10.
honey bees build hexagonal cells. the giants causeway (scotland to ireland) is made of basalt columns, hexagonal cross sectional area. http://www.ee.qub.ac.uk/dsp/mmns2003/picture/giants_causeway.jpg there may be others
Giant's Causeway, an anomolous collection of natural hexagonal structures
The Giants Causeway.
The Giants Causeway is a famous tourist attraction in the north of Ireland.
The Giants causeway is linked to the legend of Finn MacCool who built it to fight another giant of Scotland. The legend also states that Finn pretended to be his baby so that the opposing Giant would get scared and run away!
In Northern Ireland there are many mountains, valleys, lakes, rivers, bays, inlets, and islands. Very famous is the Giants Causeway, which are loads of pillars of basalt in hexagonal forms.
The Giant's Causeway.
Balast rock