Just north of Konstablerwache there is a collection of bureaucratic municipal buildings that offer little in the direction of recreation or culture. However, hidden amongst this cohort is the former prison Klapperfeld, which used to be used as a jail until the turn of the millennium. Now the former prison is an exhibition space, communicating the extensive (the building was used as a jail for over 115 years) and often repressive history of the site. It also doubles as a music venue on various evenings during the week/weekend. Most often you’ll hear metal or rock streaming from within the jail’s walls, though the program does provide a significant degree of variety.
My recommendation would be to check out the facilities on a weekend afternoon so you can glean some of the history of this nearly 150-year-old structure. Come back for a Barabend (open bar), communicated via the online program found here. Otherwise, look for the interesting exhibitions they consistently host; in June they had a great exhibition on art and its role in resistance movements. Such information can also be found under the program.