I would suggest the following:
The Palladium (same as Taj Mahal) A palace of shiny metal
The Boneyard +100% Vehicle Production A massive graveyard of vehicles full of parts and scrap.
The Citadel +1 Safety, +100% safety, +25% defense in all cities
Fallout Zoo +1 Happy in all cities, +25% commerce
Great Junk Market +25% Commerce, +25% Production, +2 trade routes
Wasteland Theatre No unhappiness in city
University of the Wastes +100% science
The Palladium (same as Taj Mahal) A palace of shiny metal
The Boneyard +100% Vehicle Production A massive graveyard of vehicles full of parts and scrap.
The Citadel +1 Safety, +100% safety, +25% defense in all cities
Fallout Zoo +1 Happy in all cities, +25% commerce
Great Junk Market +25% Commerce, +25% Production, +2 trade routes
Wasteland Theatre No unhappiness in city
University of the Wastes +100% science