I'm looking for inspiration... I've been in old bars, taverns and restaurants that have horrible layouts. Lots of disconnected rooms, confusing passages, tight stairs... You know, someplace an engineer or architect would NEVER design, but something that grows through decades or centuries of acquisition, etc.

Does anyone have any layout or sketches or maps of such places? One place I've been that sort of gives this feel is the Three Sisters in Gronigen; https://nl.wikipedia.org/wiki/Drie_Gezusters_(bedrijf)