I am one of the few Brits on here and thought I would put my tuppence in.
I have lived now in 13 countries and am a dual national and my wife a tri national.
Regards education, you will, like pretty much anywhere, get fantastic and crap. I know of some schools in the USA that if it were a choice of my child going there or getting no education at all, I would chose the later.
Holiday time, yes, generally you will get more. The legal minimum is 20 days, but most give significantly more.
History, yes bags of it. I live in Windsor which is a stones through from London and the town is dominated by the castle. Every resident of Windsor has free unlimited access to the castle and our daily lives pretty much work around it - for example, the changing of the guard causes roads to close.
As I am mentioning Windsor, I will also reply to a comment on Eton College as Eton is the opposite side of the river of Windsor. Eton is one of the greatest schools in the world, yes, generally eye wateringly expensive. However, 1 in 10 pay between little and nothing. Same with all private schools (which just to confuse you, private schools are referred to as Public Schools).
I don't know the visa situation for you, but, from my experience of running forums for Brits moving internationally, I always recommend you speak to a professional migration agent.