A group of foreign tourists take photographs inside the Muhammad Ali Mosque in Cairo's Citadel on October 21, 2013 in Cairo, Egypt. The Muhammad Ali Mosque, completed in the 1850's, is one of Cairo's ... more 
A group of foreign tourists take photographs inside the Muhammad Ali Mosque in Cairo's Citadel on October 21, 2013 in Cairo, Egypt. The Muhammad Ali Mosque, completed in the 1850's, is one of Cairo's major tourist attractions. (Photo by Ed Giles/Getty Images). less 
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Getty Images | Photo By Ed Giles/Getty Images
Tue, Oct 22, 2013 1:00 PM EDT