rush astrology
be the first to make stonehenge
once you made stonehenge, get a holy site and build a shrine.
As soon as possible get the pantheon that gives culture for pastures and just build as many pastures as possible. Then establish a religion as quickly after that as possible. choose a custom religon.
Select choral music and world church.
Then, as soon as you can get a missionary and evangalies beleif twice to get world church and reliquiaries.

not much to do here just research tech and civics that allow you to build wonders, then build them.
Also research the drama civic build a theatre square and get all of its upgrades. Also research mysticism and when you get a new government get either the great writer wildcard or the great muscician wildcard or the great painter wildcard. If you get a great writer, musician or painter, pump out those great works to abuse the reliqiaures.

just pump great works out of great writers, muscicians and artists, and also build a bunch of wonders.
Also try and get some great works by trading with the other players.