Classy London. What things about London make it feel a bit classier, special or elegant?

We talked about the trashy things (turns out American Candy shops, spitting and actual shit everywhere is bringing us down) but what are the hints which make you feel this place is tasteful, stylish and special? I don’t mean anything which just signifies wealth or Royal Family stuff

My classy London things are:

Edwardian lampposts (especially when it’s foggy)

Really specialised shops for things a Victorian gentleman would need (umbrellas, buttons)

Tiny little public gardens like Red Cross Garden

Banks of daffodils which brighten even the grottiest of areas for a couple of weeks