NASA's Nancy Grace Roman Space Telescope team has released detailed plans for a major survey that will reveal our home galaxy ...

Okay, so you've been paying attention so far and now you know how to create productive, wealthy cities and a suitable navy ready for action. That's great, but cities won't be handed to you -- you've ...

An illustration of a magnifying glass. An illustration of a magnifying glass.

The Forma Urbis Romae, or map of the city of Rome, was a massive plan of the layout of the city under the emperor Septimius Severus (r. A.D. 193–211). Although only a small portion of the plan ...

For the past several hundred years, historians and archaeologists have been doggedly working to solve one of the world’s largest jigsaw puzzles: the Forma Urbis Romae. Sometimes known as the Severan ...

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 ...