Category and page organisation

Hello guys,

I can really use some help with the structure of my website, haven′t been working with wp in some years now.
My websites menu has next to ‘home’ 6 other menuitems (restaurants, bars, events, etc.)
I write about all the best places to go to in different cities (and there are going to be a lot) so I really dont want to have a ton of submenus.
Instead I would like for my visitors to be able to select a city (in the header) and be directed to a page with the same menu items but then for that specific city.
(so they stay on that city in all menu items until they change the city).
So for example ..url.com/city/restaurants where the ‘bars’ menu links to ..url.com/city/bars etc.

I know it must be an amateur question but I looked it up as much as I could, But does anyone here know how I can set this up?

Thanks a lot!