Yharnam is the city where the events of Bloodborne take place.
Yharnam is an imposing and sprawling metropolis characterized by Gothic and Victorian architecture.
Yharnam’s Victorian architecture is reminiscent of late 19th Century European cities including Paris, Edinburgh, Cologne and London. Residents of Yharnam are called Yharnamites. The town appears rather grim and decadent and has been ravaged by a mysterious plague, becoming infested with dangerous beasts and demented citizens.
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https://bloodborne.fandom.com/wiki/Yharnam