Lots of cities have beautiful areas while the rest is rundown and grotty. Warsaw and Gdańsk have stunning ‘old towns’ which are totally hemmed in by ugly 1960s brutalist office blocks and industrial sites. Rome is stunning, but it’s filthy and covered in graffiti. Budapest is the same, with the added bonus of prostitutes everywhere - the stop single men in the street and ask if they want a good time kind of prostitutes. (Maybe that makes Budapest more attractive! Who knows?) I think one of the most beautiful (and greatly underestimated) cities is Vienna. It’s got the lot - stunning architecture, loads of culture, excellent layout, it’s clean, it’s safe. All these and Sachertorte too! What more could you wish for?