This illustration shows a semi-permanent lunar base, a six-person shelter landed by a direct flight from Earth and coupled to an expandable laboratory in the foreground. It's part of a 1969 Science Journal article about lunar colonies of the future.
Remember the can-do spirit of lunar exploration? Back when it seemed the heliopause was the limit? Back then, artists like Norman Rockwell and Robert T. McCall painted bright, optimistic moonscapes and astronauts. Here's a gallery.