For a cultural victory, you must have a total of 100,000 culture points. Also, your total culture must be at least double every other civ. Your advisors can tell you if you have double their culture: "admirers of" = 2x, "in awe of" = 3x.
First step: play as the Babylonians (scientific, religious) to get the half-price temples, libraries, etc.
Build lots of cities early, using an "outside-in" method. Find your neighbors, and build cities right on their borders, then start builing back towards your capital. Concentrate on building as many settlers as possible, build defensive units while waiting for the population to get back to three, and then build another settler. This way you can grab a lot of land early. Your neighbor will probably put a few cities behind your line, but you will soon have them surrounded, so they will eventually culture-flip over to you.
Once you have your cities established, start building culture-enhancing improvements: temples and libraries, then cathedrals and univerisities once you have the tech. Each contributes culture points every turn. It helps to build these early, because
when an improvement becomes 1000 years old, it cultural value doubles.
Building wonders also helps, but they take so long to build that you should concentrate on improvements first.
Since each cultural improvement/wonder in
each city contributes to your overall culture, it helps to have a lot of cities (don't be afraid to overlap city radii). A lot of medium-sized cities with high culture will build points faster than only a few large ones. Your culture points are not dependent on population, but only on the number and age of certain improvements.
Culture-per-turn for
new improvements:
Code:
<html>
<table border="1" width="25%">
<tr>
<td width="50%"><font face="Arial" size="2">Palace</font></td>
<td width="50%"><font face="Arial" size="2">1</font></td>
</tr>
<tr>
<td width="50%"><font face="Arial" size="2">Temple</font></td>
<td width="50%"><font face="Arial" size="2">2</font></td>
</tr>
<tr>
<td width="50%"><font face="Arial" size="2">Library</font></td>
<td width="50%"><font face="Arial" size="2">3</font></td>
</tr>
<tr>
<td width="50%"><font face="Arial" size="2">Cathedral</font></td>
<td width="50%"><font face="Arial" size="2">3</font></td>
</tr>
<tr>
<td width="50%"><font face="Arial" size="2">University</font></td>
<td width="50%"><font face="Arial" size="2">4</font></td>
</tr>
<tr>
<td width="50%"><font face="Arial" size="2">Colosseum</font></td>
<td width="50%"><font face="Arial" size="2">2</font></td>
</tr>
<tr>
<td width="50%"><font face="Arial" size="2">Research Lab</font></td>
<td width="50%"><font face="Arial" size="2">2 (comes too late to help much</font></td>
</tr>
</table>
</html>
Wonders (great & small) also add culture points. One of the best early ones is the Great Library at 6 per turn. Also worth 6 are J.S Bach's Cath, Newton's Univ, and Sistine Chapel. Shakespeare's Theatre is worth 8 per turn, but it come kind of late--still helps, though. Hanging Gardens, Oracle, and Pyramids are pretty good early ones at 4 points each (remember, the earlier ones will double in value after 1000 years) For a complete list, check the Pedia or the info center on this website
http://www.civfanatics.com/civ3infocenter.shtml#wonders