World Wonders

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In addition to a Tech or perhaps terrain requirement (i.e. coast), every *World Wonder* requires a certain number of Social Policies in order to be built or a Policy to be finished or an Ideology chosen.

Investing costs rise for every city in the empire, listed prices are for one city. Investment, although rather costly, gives 25% of the  cost (instead of 50%). Babylon's investment bonus happens to also work on Wonders gives them an additional 15%. Division of Labor (Industry) invests an additional 10% to the Wonder. Be sure to invest before the Wonder goes to 75% completion, as by than you can no longer invest.

Losing a Wonder race grants you some Yield as compensation (it is 33%  by default).

Great Engineers can finish a Wonder in the same turn if they would give more  than the Wonder costs (also, each Manufactory YOU have made increases the Engineer's bulb by 20%).

Sources of additonal % for Wonders:

1. Stone increases the  of pre- Medieval Era Wonders by 10%.
2. Marble increases the  of pre- Industrial Era Wonders by 15%.
3. Egypt has +20%  towards Wonders (+40%  during a  [ as well as +20%  from being in a ]).
4. Communism (Order): +20%  towards Wonders

Every *World Wonder* you build increases the cost of other World Wonders, particularly those in the same Era. Take note when taking a City that has plenty of Wonders already. Likewise, you can try to enter a new Era to make the current Wonder you were building cheaper.

For every Wonder of the same Era: 25%

For every Wonder of the previous Era: 15%

For every Wonder from 2 Eras prior: 10%

Wonders earlier than 2 Eras don't count.

## Modern

### Corporations

All Corporations have the following effect:

Every Franchise in a foreign City increases you  with them by 2%.

## Atomic

840
Grants a free Research lab in the city
2 Extra
Levels up all your existing
Spies cannot do the 'failure' Advanced Action
Spies much more likely to steal science or disrupt world wonders via AA
15% reduction in enemy  effectiveness in all cities
+1  Science from  Scientists.
790
+2 Great Merchant Points
+1 Supply
Increases Air Unit Cap by 2 in every City.
Receive 2 Free Jet Fighters.
+50%  towards Air Units in City and +20 XP.
Owned Spies more likely to disrupt Unit  via AA.

## World Congress

1 Empty Great Work of Art or Artefact Slot
The Empire enters a .
+2  and  for all Factories in owned cities.
  Grand Canal | 500  per Civ
Receive an additional Trade Route.
Grants all Naval Units except Submarines and Carriers the Treasure Fleet promotion, which grants +10% combat strength when attacking, +1 Sight, and the ability to heal outside friendly territory.
 International Space Station
Great Scientists provide 33% more  when used to discover a technology.
  Olympic village | 1400  per Civ
+3
25% of the  from World Wonders, Natural Wonders, and Improvements (Landmarks, Moai, Châteaux) is added to the  output of the city.
  United Nations | 1700  per Civ
Earn 25 Influence points with all City-States you have met when you expend a Great Person.
Receive an additional Delegate in the World Congress.
Triggers a , as well as the United Nations Special Session of the World Congress.