Hello, once again!
I don't know about the past 80 years but there are some figures here, which might be of interest, regading house prices over the past 30 years:
http://www.fool.co.uk/mortgages/articles/houseprices.htm
If you're looking for investments which have historically beaten the stock exchange then, for those with 'big bucks', I'd suggest that the very top end of the art market has probably seen returns well above those of the stock market. (e.g. if you compare the current price of works by, say, Picasso now with prices in, say, the 1960s, you'll almost certainly see some really massive increases).
Chris
Chris