A list of the National Wonders excluding the Palace:
Heroic Epic: +100% unit production
West Point: +4 xp to units
Ironworks: +100%* production
Wall Street: +100% commerce
Oxford University: +100% research
National Epic: +100% great people
Hermitage: +100% culture
Globe Theatre: no unhappiness
Scotland Yard: spies
Red Cross: free Medic I promo
Mount Rushmore: -25% war weariness
Forbidden Palace: reduces distance maintenance
How do you regularly combine them or disperse them?
Usually I try to give my production cities:
Heroic Epic + West Point
Ironworks + Red Cross
For my commerce cities:
Wall Street + Oxford University
Great People cities:
National Epic + Globe Theatre
Everything else goes to random cities, except for the Forbidden Palace, which I try to distance from my capital and place near my good cities.
Heroic Epic: +100% unit production
West Point: +4 xp to units
Ironworks: +100%* production
Wall Street: +100% commerce
Oxford University: +100% research
National Epic: +100% great people
Hermitage: +100% culture
Globe Theatre: no unhappiness
Scotland Yard: spies
Red Cross: free Medic I promo
Mount Rushmore: -25% war weariness
Forbidden Palace: reduces distance maintenance
How do you regularly combine them or disperse them?
Usually I try to give my production cities:
Heroic Epic + West Point
Ironworks + Red Cross
For my commerce cities:
Wall Street + Oxford University
Great People cities:
National Epic + Globe Theatre
Everything else goes to random cities, except for the Forbidden Palace, which I try to distance from my capital and place near my good cities.