Hmmm you`re gonna be playing a really long game, let´s say that you take adventage of all those extra turns, mostly doing exploration and searching for ruins, (I assume you`re playing a large map to support a wide civ) with some luck you can get
Great Library ussualy the most contested wonder in every game, from there i will go with:
List of Wonders
Absolutelly necessary
Very helpfull
Handy to have
Ancient
Great Library (Very early push on science it also grants a GS point)
Temple of Artemis c5food: =
=
)
Hanging Gardens (same as Temple of Artemis)
Classical
Oracle (it gaves you a GS point)
Colossus (You can use the extra trade route as an internal food trade route)
Petra (same as Colossus)
Medieval
Notre Dame (as a wide civ you will be running out of happiness very soon)
Renaissance
Leaning Tower of Pisa (faster GS generation)
Porcelain Tower (only if you are planning to be a very diplomatic civ player this game)
Taj Mahal (same as Notre Dame)
Industrial
Big Ben (if you`re going Fredom it will help you purchasing G.S.)
Eiffel Tower (Same as Notre Dame)
Modern
Hubble Space Telescope (the game-breaking wonder for SV)
CN Tower (Same as Temple of Artemis)
Also make a religion with one of these beliefs (not both of them because these civ can´t support it)
Fertility Rites
Swords into Plowshares (both very powerfull specially in the late game)
and one of these...
Feed the World
Interfaith Dialogue
Sun God
Messenger of the Gods
Goddess of the Hunt
And don´t forget about the National wonders, National College and Oxford University are absolutelly necesary, and if you´re going really wide, go for Circus Maximus.