Swakopmund brims with numerous historic examples of traditional German architecture. The impressive 1909 Alte Gefängnis was designed by architect Heinrich Bause, and if you didn't know it was a prison, you'd swear it was either an early East German train station or a health-spa hotel.
In fact, the main building was used only for staff housing while the prisoners were relegated to less opulent quarters on one side. Note that it still serves as a prison and is considered a sensitive structure, so photography is not permitted.