[caption id="attachment_55242249" align="aligncenter" width="620"] US president Barack Obama (2nd L), former aide Samantha Power (R), US ambassador…

[caption id="attachment_55242224" align="alignnone" width="620"] Acting president of the Syrian National Coalition (SNC) George Sabra (2nd-R) attends…

[caption id="attachment_55242206" align="aligncenter" width="620"] Iranians sit next to electoral posters of Hassan Rouhani (L) and Mohsen Rezaei (C)…

[caption id="attachment_55242213" align="alignnone" width="620"] FREDERICK FLORIN/AFP/Getty Images[/caption] The Antarctic penguins may not be aware…

[caption id="attachment_55242162" align="alignnone" width="620"] The Cairo Opera Ballet Company performing Verdi's Aida in May 2013. (MOURAD HESHMAT)…

[caption id="attachment_55242153" align="alignnone" width="620"] Female supporters of Iranian presidential candidate Saeed Jalili hold up his posters…

[caption id="attachment_55242147" align="alignnone" width="620"] Illustration showing leaders of the Continental Congress, from left to right, John…

[caption id="attachment_55242048" align="aligncenter" width="620"] The Euphrates river is seen from the window of a SyrianAir passenger plane as it…

[caption id="attachment_55242109" align="alignnone" width="620"] Libyan Interior Minister Ashour Shuail arrives at the Moroccan Ministry of Interior…

[caption id="attachment_55242028" align="aligncenter" width="620"] In this handout image provided by the U.S. Navy, Marines assigned to the 13th…