Another classic Maiden song, this is a mandatory song at all Maiden concerts. It was first recorded on the Soundhouse Tapes and, although this re-recorded version is much superior to the Soundhouse version, it still doesn't make it a very good song by Maiden's standards. There isn't any guitar solo, and the lyrics seem quite strange. It is hard to understand how such a medium-quality song has become the band's trademark song over the years.

Note that an "Iron Maiden" was a medieval torture instrument looking like a sarcophagus, and whose "door" was embedded with sharp spikes. It was usually used vertically and the victim was put inside before the door was allowed to slowly close under the influence of its own weight. What a horrible way to die! More recently, "Iron Maiden" was the nickname of Margaret "Maggie" Thatcher who was head of the Conservative party in the U.K., then elected Prime Minister of Britain around the time the band started. She appears on the cover sleeves of the Sanctuary and Women In Uniform singles.