The Atlas Society's Lunar HQ (heavily inspired and influenced by ShardWarrior's stunning Excelsior moonbase):
Shard: Excelsior
Passcode: MOON-14858
The SG is just my kids and I, and the base is still heavily under construction (lots of landscaping in particular to do). There's a 2-way airlock to get outside on the level above the teleporters, with two additional (entrance-only so far) airlocks outside the habitat. The "elevator" in the central atrium section has a biometric palmprint reader that takes members to their individual private quarters (themed like rustic cabins to contrast with the base's relative sterility). Future planned expansions include a "garden cave" and an orbiting communications relay station.
Cheers