For as long as humans have lived in settled communities, some groups have sought to assert dominance over others, and through history the biggest empires grew to cover millions of square miles.

Interested? Click through this gallery to see which empires boasted the biggest territories. You may also like: ...

For as long as humans have lived in settled communities, some groups have sought to assert dominance over others, and through history the biggest empires grew to cover millions of square miles. But ...