1-4

Manufactorum:
A complex of foundries, factories and workshops with a respectable workforce and material output.

5-8

Research Laboratory:
Either a state of the art personal laboratory or a large manned research facility.

9-12

Archaoetech Vault:
A particularly grand collection of relics dating back millennia.

13-16

Librarium:
Either a particularly comprehensive personal archive or a manned biblio-complex.

17-20

Cogitator Complex:
A large installation of networked cogitators.

21-24

Orbital Installation:
These range from small communications or research satellites through to sprawling orbital manufacturing installations.

25-28

Land Leviathan:
A titanic land-based vehicle used for industry, research or warfare.

29-32

Sea Leviathan:
A titanic liquid-based vehicle used for industry, research or warfare.

33-36

Air Leviathan:
A titanic aircraft used for industry, research or warfare

37-40

System Ship:
A small vessel limited to non-warp travel within a star system

41-44

Small Starship:
A small warp capable vessel.

45-48

Medium Starship:
An average warp capable vessel.

49-52

Large Starship:
A particularly large warp capable vessel.

53-56

Colossal Starship:
A capital ship or equivalent warp capable vessel.

57-60

Habitation Block:
A structure housing a huge population of densely packed humanity.

61-64

Palatial Estate:
A particularly spacious residence or posting, fit for an Imperial noble.

65-68

Temple:
A sizeable temple of the Machine Cult.

69-72

Servitors:
A sizeable population of servitors, numbering in the hundreds or even thousands.

73-76

Prison:
A penal installation housing those charged with crimes against the Imperium or the Adeptus Mechanicus.

77-80

Medical Facility:
A hospital, sickbay or triage installation.

81-84

Resource Extraction Facility:
A mine, promethium field, solar array or other important resource.

85-88

Communications hub:
A Vox or Astropathic installation.

89-92

Fortress:
A defensive fortification or weapon installation.

93-96

Administrative complex:
A center of government or bureaucracy.

97-100

Exotic:
Roll on "Exotic Acquisitions".