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It is a tribute to the coexistence of Poles and Jews. The memorial is close to the Old Market Square in Staromiejski Park.
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Park Staromiejski (every local knows it by the name Park Śledzia)
The Decalogue Memorial is in the park, and has an excellent view on the Old Market Square. You can play chess with the locals there.
Museum of Łódź Sewage System
Museum of the old sewage system in a circular water tank below pl. Wolnosci, built in brick in 1926. Accommodates max. 10 people inside, no big bags, do not go in if you are claustrophobic. A great experience otherwise.
Pałac Poznańskiego
A beautiful 19th-century building that was built by Izrael Poznański - a textile magnate and a philanthropist. Today it holds the Museum of the City of Łódź.
Poznański Palace
Various beautiful rooms with exhibitions dedicated to some of the most famous people from Łódź including writer Julian Tuwim, pianist Artur Rubenstein, and collections of items from the daily lives of those who have lived in Łódź throughout the years. The museum is in a beautiful building called Palace Poznańskiego. One of the major attractions in Łódź.
Museum of Ethnography and Archaeology
The largest museum in the city, containing an exceptional collection of ancient treasures and archaeological artefacts from all around the surrounding region. Many exhibits date from as long ago as the Stone Age, and cover various periods right up to the Middle Ages.
It is one of the longest commercial streets in Europe and one of the major attractions in the city. It runs in a straight line from the Liberty Square (Plac Wolności) to the Independence Square (Plac Niepodległości). Many pubs, bars, restaurants, and attractions are on this street. Although the cross streets have motor vehicles Piotrkowska Street itself has none so one has about 5 kms of fairly carefree strolling.