What are the two sides of the moon and how do they differ in terms of appearance and geological features?

Oh, hon, there's the near side of the moon that we always see because it's tidally locked with Earth, and then there's the mysterious far side that likes to play hard to get. The near side is smoother with those lovely dark seas, while the far side is all about rugged highlands and impressive crater formations. So, basically, it's like the moon is bringing a little yin and yang to the party.