Civsassin
Immortal
A 4 pop city with a colosseum still "producing" 2 unhapiness due "number of cities" unhapiness. The luxuries available is limited. How do you "infinite" city sprawn if each city have a negative unhapiness?
They are certainly making it more difficult with the last and this upcoming patch, but it it still possible with the right policies and wonders.
base, one more from lighthouse, total of 4 
is the best possible unimproved tile to work as your first tile (only riverside Cattle and riverside Grassland Wheat give the same), and typically you start next to one and can get another one as your first expansion tile.