Additional WORLD Wonders (built by players)
Great Sphinx of Giza https://en.wikipedia.org/wiki/Great_Sphinx_of_Giza
ANCIENT ERA (Requires Masonry)
*NO initial bonuses*
Instantly research Archaeology provided you have unlocked the necessary technologies
+1

to all Archaeologist units
Constructing Archaeological Digs takes only two turns instead of three
Flavian Amphitheater https://en.wikipedia.org/wiki/Colosseum
CLASSICAL ERA (Requires Construction)
+1

for every pasture you have constructed within your first three cities which contain horses or elephants
+1

for every mine you have constructed within your first three cities which contain iron
The Wailing Wall https://en.wikipedia.org/wiki/Wailing_wall
MEDIEVAL ERA (Requires Theology)
*Can only be built on a Holy City*
+10

+30

to all

and Civilizations following a different religion if Neutral/Friends/Allies
+15%

against all

and Civilizations following a different religion if Hostile or At War
Panama Canal https://en.wikipedia.org/wiki/Panama_Canal
INDUSTRIAL ERA (Requires Dynamite)
*City must be built on a coast*
+15%

from naval

routes
All Maritime

will give a one-time gift of 50

(as Enemy or Neutral) 100

(Friends); 150

(Allies)
*NOTE: Machu Pichu's 25% bonus will still apply to -all-

routes
Hollywood http://en.wikipedia.org/wiki/Hollywood
MODERN ERA (Requires Electronics or.. I guess Radio)
Can spawn up to three Great Celebrities
A great celebrity has three uses:
- Start a Cinematic Golden Age, which is a shorter golden age, but adds the boosts in

and tourism (Concert Tour and Great Treatise)
- Create the Walk of Fame (permanent Tile Improvement/only one can exist) which adds

,

, and tourism
- Establish a Celebrity Charity Foundation (unique building) which increases

,

, and Public Opinion towards your ideology
World Trade Center https://en.wikipedia.org/wiki/World_trade_center
ATOMIC ERA (Requires Computers)
After building this wonder, should you lose any of your cities, all existing units immediately gain a +30% bonus

and +1

for 20 turns.
All player-controlled cities gain +25%

.
Any

and

city will generate +100% additional

for these turns, and another 20 turns thereafter.
*NOTE:
I'm thinking of a man-made wonder which, given its history, has been lost/destroyed, and has caused wars.
The only thing I could think of at this moment are the Twin Towers -> 9/11 -> Afghanistan/Iraq.
American military steamrolled its opponents, yet it caused resentment at home, and insurgency in occupied territories.
- So basically this is a purely "shock-and-awe" type of effect. Destroy armies, but you should avoid taking over territory.
Burj Khalifa https://en.wikipedia.org/wiki/Burj_khalifa
INFORMATION ERA (Requires Globalization... or... Telecommunications, or that new tech in BNW, Internet)
+25

+10

for each percentage of tourism that exceeds the

of another Civilization
I'm still thinking of a few ideas hehe
