Australia
Austria
Belize
Brazil
Canada
China
Finland
France
Germany
Hungary
India
Indus Valley civilization
Ireland
Japan
Kazakhstan
Netherlands
Poland
Spain
Sweden
United Kingdom (including all New Towns under the New Towns Act of 1946 and successive Acts)
United States
... which clever poets have exploited to perform such feats as writing poems which can be interpreted in multiple, unrelated ways depending on how the reader chooses ...