Here are some images of my scratch built 1/350 scale (guess) model of the Clavius Base from 2001 a space odyssey.
From Wikipedia "
Clavius Base is a lunar settlement in the fictional Space Odyssey universe created by Arthur C. Clarke.
The base, located at Clavius crater, is featured in both the novel and film versions of 2001: A Space Odyssey. According to the novel, the base was finished in 1994 by United States Astronautical Engineering Corps. If necessary, the base can be self-sustaining.
As depicted on screen, Clavius Base features some surface features (a landing pad and control tower, together with other ancillary support structures), but the vast majority of the base is located beneath the Lunar surface.
The spacecraft sets down on a landing platform beneath a dome which opens as the spacecraft descends. The landing platform proves to be the platform of an enormous elevator, which lowers the spacecraft into a cavernous docking bay, illuminated in red. Most of the base has been built underground to protect it from micro-meteoroid impacts and solar radiation.
Although not a reuse of the Clavius model, Moonbase Alpha from the TV series Space: 1999 is designed using the same concept as Clavius. It is located in another crater, Plato.
Clavius Base is, apparently, the central focus of American activities on the Moon, and is under the control of the United States Astronautics Agency.