The Pyramid was located on the main street of the small English town of Little Caldwell. It occupied a single two-story building: the coffee shop was downstairs; the book shop, which specialised in the occult, New Age mysticism, and paranormal phenonmena, was upstairs. The Pyramid was also, unbeknownst to most, a safe house for aliens and the temporally-stranded. They were smuggled to Little Caldwell, and generally stayed in its back rooms until transportation could be arranged to their home planet or era. Generally, this was done by UNIT.