Greenwich Meridian

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There is a point on the motorway connecting Madrid with Zaragoza, Lleida (Lérida in Spanish) , Barcelona and other cities in the northeast of the Iberian Peninsula where the motorway crosses the passage of the Greenwich Meridian. The point is located in Aragon province, near Zaragoza, between little towns named Bujaraloz and Peñalba, at the very heart of the Los Monegros region. more »

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The point is only visible while you are driving on the motorway: it is marked with an arch exactly at the point where the meridian crosses the AP-2 Motorway. Numerous signs announce the Greenwich Meridian before arriving. The Greenwich Meridian is, in fact, an imaginary semi-circle that links the Earth Poles and passes ancient premises of the Royal Greenwich Observatory in Greenwich, the eastern suburb of London. It serves as the prime meridian from which the terrestrial longitude is derived. The Greenwich Meridian is the reference meridian or also the zero median as its longitude is equal to zero. The AP-2 Motorway passes the northern part of Spain and connects the northern coast of the country with the eastern coast. The road is also called the Northeastern Motorway. It begins in the city of Zaragoza, passes through Lleida (Lérida in Spain) and ends in El Vendrello (Catalonia) , some 70 km to the west from Barcelona. You are required to pay the toll to drive on the AP-2 Motorway..