Stage 1: Deserted Space Colony:

Stage 2: Underground Concourse:

Stage 3: Terrorist Headquarters:

Stage 4: Inside The Terrorists' Spaceship: http://www.vgmaps.com/Atlas/NES/JourneyToSilius-Stage4-InsideTheTerrorists'Spaceship.png

Stage 5: Inside The Terrorists' Spaceship Factory: http://www.vgmaps.com/Atlas/NES/JourneyToSilius-Stage5-InsideTheTerrorists'SpaceshipFactory.png