columnar basalt rock, cape stolbchaty on kunashir island, in the foreground bases of lava basalt columns form a kind of pavement

pavement cracks cracked surface background backdrop cape stolbchaty giant causeway columnar jointing lava basalt natural nature column stone rock pile pillars volcanic cliff beautiful amazing phenomenon landscape prism eruption ancient structure hexagonal polygon pole coast coastal shore sea ocean kunashir island kurile kuril landmark unusual mineral intrusive mysterious grey graphic foreground bases columns form kind pavement