Gemini Prog C - friznit/Unofficial-BDB-Wiki GitHub Wiki
Modular Space Station Evolving from Gemini was a 1960's proposal for a manned orbital station. It evolved into the Manned Orbiting Laboratory (MOL) concept, that was in turn scrapped in favour of autonomous surveillance satellites. Program C was the most ambitious project for a four room space station.
Kerbal Koncepts: BDB features a number of conceptual parts for making the LMSS Leo Modular Space Station