Internet History Sourcebooks Project
Fordham University: Ancient History Sourcebook: The Battle of Chaeronea
This site, which is provided for by the Fordham University and the Ancient History Sourcebook, gives an account of the Battle of Chaeronea from the historian Diodorus Siculus.
Other
Museum of Unnatural History: Hanging Gardens of Babylon
A detailed article on the construction of the Hanging Gardens of Babylon can be found here. Why they were built, how the garden received water, and the exact measurements of the garden are among the topics discussed in the article.