Most of the (continental) old Europe was either killed in Word War II or demolished to make way for modern car-based cities.

Even big cities like Paris, Warsaw, Hamburg, Amsterdam and Berlin had many almost medieval city centers and places. Only a few survived - most of those old building are recreations.

But maybe it’s a good thing - if you travel to Switzerland (a country so neutral it doesn’t know what war means - apart from ripping off fugitives) - everything there feels like Disney Land, because most of it’s old buildings are still there. Renewal often means destruction - and destruction of means war or a mad emperor burning down your city.