A view of the former U.S. Embassy in Tehran. Once a prison for over 50 American hostages nearly 35 years ago, the two-story building is run by the Iranian government and has been turned into an Islamic cultural center and a propaganda museum of sorts for the Islamic Revolution. CNN's Jim Sciutto visited the facility. See the photo gallery. Jennifer Rizzo/CNN
This door with a combination lock led to the secure section of the embassy where the Iranians said the CIA operated.
According to the Iranian tour guide, this was communications equipment used by the CIA to spy on the Iranians. Jennifer Rizzo/CNN
U.S. Embassy staff is said to have used shredders -- like this one -- to try to destroy secret documents as the Iranian students took over.
A teletype machine and a primitive fax machine were found in the secure area of the embassy. Jennifer Rizzo/CNN
Messages in English and in Farsi saying "Greetings to Khomenei." Jennifer Rizzo/CNN
This mat, which lies at the entrance to the secure part of the embassy, is an example of the anti-American propaganda there today. In Farsi, the writing says "Death to America." Jennifer Rizzo/CNN
Scene from outside the former U.S. Embassy in Tehran. Jim Sciutto/CNN