In Pictures: Tama Zoological Park: Animal Farm

The new orangutan exhibit took almost 2 years to complete and cost a mind-boggling 1 billion yen to build. Except when closed in the winter, the orangutans can swing above the walkways between two enclosures.

Tama Zoo is world renowned for thinking creatively about displaying animals. Its sprawling 52 ha (129 acres) of rolling hills and valleys in western Tokyo are well put to use showing a relatively small number of species but in large natural environments. (Read More: Tama Zoological Park)