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Photo: Lukas Gerhold, Public domain via Wikimedia Commons
The Technomuseum displays various tools and machines from different times.
The Technoseum is a technology museum in Mannheim, Baden-Württemberg, Germany, with displays covering the industrialisation of the south-western regions of the country.
© OpenStreetMap contributors
Considered one of Europe's most beautiful parks, Luisenpark offers vast green spaces, a Chinese tea house, and boat trips on the 'Gondolettas'. It is recommended to book tickets online in advance, as they are cheaper than at the gate and allow for faster entry through the automated turnstiles.
The original Steinmeyer Organ with about 8000 pipes is one of the biggest within Germany and was built in 1911.
m:con
Music concerts and conferences.
Art Gallery
A museum for modern and contemporary art featuring an extensive collection of sculptures and paintings from the 19th century to the present. The facility consists of a historic building from 1907 and a modern extension, housing both permanent galleries and temporary exhibitions.
Wasserturm
One of the most famous icons of the Jugendstil (Arte-Nouveau style) in Germany, the water tower (and small park surrounding it) is a great place to sit in the summer for a picnic or just a little rest (officially, walking or sitting on the lawn is prohibited). The park is surrounded by the Rosengarten, a conference hall of reddish brick, and the colors on a sunny day are amazing.
NTM
One of the most important theatres in Germany. "The Robbers" by Schiller had its world premiere here. Has a different show almost every night (for some shows, like ballets or opera, the language barrier is not an issue).