Side-by-side photos of a castle before and after its destruction

(Left): Al Qahirah Castle, a monumental architectural landmark, towered over the city of Taizz, Yemen, in this 2013 photograph. © 2013 Julien Harneis/Wikimedia Commons. (Right): Smoke rises over al Qahirah Castle in Taizz, Yemen, after airstrikes by the Saudi and UAE-led coalition, on May 21, 2015.

© 2015 AP Photo/Abdulnasser Alseddik, File