Anita,
        Sorry for not defining the term. A haha wall is basically a
retaining wall built into a ditch. It was meant to keep livestock out of the
garden area while retaining an uninterrupted 'romantic' view from the house
and garden of the animals in their 'natural' habitat. It was popular on
British estates designed following the English School of Landscape
Gardening. The Uniacke haha is a semi-circle with a radius of c.55 feet
which was built c.1815 and filled-in c.1870. We are having difficulty in
finding other estates in North America which have haha walls.
Hope this clears things up.
Thanks again.
Laird.
 
>Ok, I'll bite. What is a "haha wall"?
>
>Anita Cohen-Williams; Reference Services; Hayden Library
>Arizona State University, Tempe, AZ  85287-1006
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Laird Niven
7 Thompson St.
Dartmouth, Nova Scotia
CANADA
B2Y 2X8