There’s so much in a city that’s it’s impossible to see it all. There can be so much in a single building that even that can be too much to take in and appreciate.
The British Museum in London is just such an example. With around eight million works it would take a life time or two just to catch a glimpse, let alone study.
So a better idea is to concentrate on favourites and particular interests and do you best with those.
Exhibiting at time of writing is a Munch exhibition as well shows on manga and Troy.