Pakistan's devastating floods are now threatening ancient archaeological sites, on top of leaving millions of people dependent on humanitarian aid to survive. An antiquities official today said, flood waters in the southern province of Sindh have inundated hundreds of villages and also threaten its cultural heritage. There is danger to the 5,000-year-old Mohenjodaro and Aamri archaeological sites. Moenjodaro is on UNESCO's list of the world heritage sites. Its website says the city was built of unbaked brick in the third millennium BC and provides evidence of an early system of town planning.