From SirM.

Following eluviations and erosions these earth pyramids are constantly changing; that is due to the succession of severe cold spells in winter and hot summers which have the effect of continually forming new ones.

Sound:
Two Steps From Hell – Ocean Kingdom from their album SkyWorld
https://www.youtube.com/watch?v=1LQKLYTxz44

Great artists. Definitely check them out!
Buy this album on iTunes: http://tiny.cc/TSFH-Skyworld

TSFH Official Websites:
www.twostepsfromhell.com
www.thomasbergersen.com