Cardo is the word Latin for "hub" or "door hinge" used in terms of geographical focus to designate the north-south axis around which the sky appears to rotate ^{Jerusalem Cardo}

Cardo is an example of one of ancient Jerusalem. After the suppression of the Jewish revolt of 70 by the troops of Titus , Emperor Hadrian began the rebuilding of Jerusalem on the Roman model by renaming it Aelia Capitolina , and new plans for the city incorporated with a colonnaded cardo running from north to south. This cardo is still part of the city of Jerusalem.

Cardo Metz

The cardo maximus Divodurum Medimatricorum was via scarponensis (which gave its name to the street Serpenoise ) path to Scarponne (Dieulouard) , north of Nancy. This axis Roman North-South line with current streets Trinitarian Taison Street Serpenoise Avenue Robert Schumann, Avenue du General Leclerc, rue de Verdun ...

Cardo de Paris

The cardo maximus of Paris was a north-south down the Montagne Sainte-Genevieve by the Rue Saint-Jacques , bordered by a series of ancient buildings including staged at the bottom of the hill, the Baths of Cluny. The cardo maximus then crossed the Seine and the Ile de la Cit by the Rue de la Cit , then borrowed the Rue Saint-Martin.

The other cardo de Paris is the one corresponding to the Boulevard Saint-Michel.

At the top of the Montagne Sainte-Genevieve, both cardos framed the central building of Lutetia Roman: the forum.

Cardo Reims

The cardo the Gallo-Roman city of Reims by what is happening today roughly the axis formed by the Avenue de Laon to Saint-Remy, he linked the Porte de Mars with the door Baze (rue de l University).

In the eighteenth ^century , the construction of the Place Royale at the crossroads of two Roman axes (cardo and decumanus) has created a shift of the cardo. Today it is divided into two parts, one is always formed by the Avenue de Laon until the Place Royale, and the second by the street and the Rue Gambetta, Chanzy.