The Abbasid Caliphate once ruled a Golden Age of knowledge and power, but it all came crashing down when Baghdad burned ...

The Abbasids ruled one of history’s greatest empires, overseeing Islam’s Golden Age Discover their rise to power and ultimate fall from glory ...

Since Philadelphia is arranged on a grid system, the mostly one-way roads are easy to navigate. Helpful maps are posted along street corners across the city – watch for the "Walk! Philadelphia" signs ...

Chicago's eastern boundary is formed by Lake Michigan, and the city is divided by the Chicago River into three geographic sections: the North Side, the South Side and the West Side. These sections ...