A novel concept for a lunar polar settlement built like the ancient Roman Pantheon has just been published in the Philosophical Transaction of the Royal Society A. The stone structure, making full use of local in situ resources, would harness focused solar energy for construction, food production and atmospheric revitalization. The habitat would provide life support for at least 40 people with a greenhouse as large as 2000 square meters with crops illuminated by focused sunlight through a top circular oculus.