If you liked the British Museum’s Ancient Egypt site, I have great news for you. I knew there were other sites in this series, and I finally had time to find them all. So here they are:
Each of these sites has interactive content, games and stories in categories like religion, geography, writing, daily life, trades and other interesting topics.
They also have an Ancient Civilization website where you can choose a theme (cities, religion, trade, etc) to compare across different civilizations.
All together, they are an excellent resource for teaching World History at the elementary and middle school level. And they are FREE!