The "urbs"- as Romans would call the physical form of the city - was nothing other than the result of the "civitas", the community of the citizen.

BBC: What if...you could design a city?

The painting Matritum Urbs Regia by Russian Pierre Schild was painted in 1956 and is based on the detailed drawings of 16th-century Flemish artist Anton van den Wyngaerde, who travelled widely around Spain on behalf of King Felipe II.

BBC: Madrid??s art, beyond the ??Golden Triangle??