My Empire: Read a book in the new library wonder
The Library of Alexandria does require building to complete, but when finished it gives 1750 happiness and 2500 fame for your ancient civilization. It's quite a large building too, so you will definitely have to clear out some junk and make room for this monument.
Do you get sick of building wonders in My Empire, or do you think it's a fun part of playing the game? Tell us in the comments!