I have researched Globalization and no other civ has yet built the Sydney Opera House wonder, yet it is not available in the production list of my city!?

Neither the civelopedia nor the manual lists any building restrictions on this wonder.

I have researched Globalization and no other civ has yet built the Sydney Opera House wonder, yet it is not available in the production list of my city!?

Neither the Civilopedia nor the manual lists any building restrictions on this wonder.