We would not have gone to the moon if it weren't for Project Gemini. Mercury was the first stepping stone and Apollo is what got us there, but Gemini was essential for learning on-orbit rendezvous, the first space walks, and other important experiments and tests before traveling to the moon.
Here is my build depicting Project Gemini at mini-fig scale! It includes a display stand with the Project Gemini patch, the reentry module with detachable rendezvous and recovery section and opening hatches, the adapter/retrograde section, and the adapter equipment section. There are two astronaut mini-figs with one that can be displayed on a space-walk like Ed White did on Gemini 4 with a Hand-Held Maneuvering Unit. There are 881 pieces that make up this set.
The Mini-fig Scale Project Gemini would be a great addition to the existing LEGO Nasa models and a good model for any space enthusiast.