100621-029 100112-812 100112-814-2 100111-164 101201-242 100112-834 Sand dunes in the Sahara desert, North Africa. 091026-605 091028-360 091028-972-2 100621-629-2 110411-461 110712-810 110928-150-2 120103-022 091028-954-2 i Sand dunes in the Sahara desert.