Wreckage from massive spaceship, overgrown by jungle.
Airborne weather control station (exterior).
Floating playhouse. On the sea or in the air, your call.
Arcology. (See here.)
Techno-organic apartment.
Body modification chamber.
Domed asteroid world. No artificial gravity!
Inhabited desert cave.
Narrow market street in future city.
Undiscovered hatch from Lost (interior). Keep to the late-60s/70s look!
Graveyard for holograms.
Alien archeological dig site.
Azteco-Buddhist temple.
Monolith towering over modern harbour.