Lisbon Zoo is fantastic. You don't need children to enjoy the spectacle. A great aerial trip around the park on a mini cable car is included in price (and dangling above lions is great fun).
Estrada de Benfica 158-160, Sete Rios;tel: 217 232 910;
Metro: Jardim zoologico;
www.zoolisboa.pt/main.aspx
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