Cairo, Egypt
Nilometer

Built in 861 on Rhoda Island, the Nilometer is a stone-lined well with a central marked column once used to measure the Nile's annual flood, the reading that set Egypt's taxes and predicted the coming harvest.
What the app adds
Roots Earth has a longer story for Nilometer, with a choice of female or male voice. Download the city audio to listen offline. No account is needed.
Location
Coordinates: 30.0069, 31.225