November 4 is the 34th anniversary of the seizure of the U.S. Embassy in Tehran by Islamist students who held 52 U.S. diplomats hostage for 444 days. The 1979 crisis triggered a break in diplomatic relations between Iran and the United States and led to decades of mutual hostility. Today, the former embassy building houses a museum that is only occasionally open to the public. Here's a rare look inside the historic site. (Photos by AFP)