American death taxes are nothing compared to what the British death duties used to be like -- at one time up to EIGHTY PERCENT of the value of the estate. Let that sink in. You build an empire, have the temerity to die, and the government takes 80% of the value of your estate BEFORE your heirs get *expletive deleted*it. That's what happens when *expletive deleted*ing socialists take over government.
Two deaths in a generation wiped out many landed families and resulted in the sale, abandonment, seizure, or destruction of many incredible country homes.
Death duties also resulted in some houses being outright given to National Trust, English/Scottish Heritage, etc., but some of the best ones were pulled apart and sold bit by bit to cover some of the death tax. That was, however, rarely accepted. Thank God, though, that Hardwick Hall was one of the ones accepted, otherwise the single greatest example of Tudor/Elizabethan architecture would have been lost.