couple of suggestions:
Bronze Horseman
The Bronze Horseman is an equestrian statue of Peter the Great in Saint Petersburg, Russia. The statue's pedestal is the enormous Thunder Stone, claimed to be the largest stone ever moved by man (1,250 t). In its original state the stone weighed about 1500 tonnes. It was carved during transportation to its current site.
not sure about effect, it could be a free great work (considering next expansion)
great engineer points, culture per expended great person
Catal Huyuk
this is needed for my neolithic era mod which is under development now
(btw many thanks for the Gobekli Tepe
)
Çatalhöyük was a very large Neolithic and Chalcolithic settlement in southern Anatolia, which existed from approximately 7500 B.C. to 5700 B.C. The inhabitants lived in mud-brick houses that were crammed together in an agglutinative manner. No footpaths or streets were used between the dwellings, which were clustered in a honeycomb-like maze. Most were accessed by holes in the ceiling, with doors reached by ladders and stairs. The rooftops were effectively streets. Vivid murals and figurines are found throughout the settlement, on interior and exterior walls. Although no identifiable temples have been found, the graves, murals, and figurines suggest that the people of Çatalhöyük had a religion rich in symbols
another beautiful image, 1024x768:
effects may be: 25 additional hit points for the city, additional 30% food kept
1 great artist points, 1 culture.