Piotrkowska Street the main artery of Łódź, Poland, is one of the longest commercial thoroughfares in Europe, with a length of 4.9 km. It is one of the major tourist attractions of the city. It runs longitudinally in the straight line between the Liberty Square (Plac Wolności) and the Independence Square (Plac Niepodleglości).
From the very beginning this street was the central axis, around which the city grew bigger, and its development spontaneously gave the present shape to its centre. At first the city was mainly the highway, but later it changed into the city's showcase, the leisure and shopping centre, where the life of growing industrial agglomeration could be observed. The street deteriorated remarkably after the World War II. Only after 1990 was it revitalized step by step and changed into a kind of pedestrian precinct. It has a function similar to a market square of old towns in other cities. Nowadays the buildings, town-planning, institutions, restaurants, clubs and pubs situated next to this street, create its specific atmosphere, which is said to have a "cult" character reaching even outside of Łódź.